<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by EDGARfilings PROfile 5.0.0.0 Broadridge-->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/QuarterlyFinancialDataUnauditedDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#QuarterlyFinancialDataUnauditedDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#EarningsPerShareDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/LeasesDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#LeasesDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanAccumulatedOtherComprehensiveLossBeforeIncomeTaxDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#DefinedBenefitAnd401KSavingsPlanAccumulatedOtherComprehensiveLossBeforeIncomeTaxDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanExpectedFutureBenefitsPaymentsDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#DefinedBenefitAnd401KSavingsPlanExpectedFutureBenefitsPaymentsDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanComponentsOfNetPeriodicPensionCostDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#DefinedBenefitAnd401KSavingsPlanComponentsOfNetPeriodicPensionCostDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/IncomeTaxesReconciliationDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#IncomeTaxesReconciliationDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/IncomeTaxesNetDeferredTaxAssetLiabilityDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#IncomeTaxesNetDeferredTaxAssetLiabilityDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/IncomeTaxesComponentsOfProvisionsForIncomeTaxesDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#IncomeTaxesComponentsOfProvisionsForIncomeTaxesDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/LongtermDebtDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#LongtermDebtDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/IntangibleAssetsAndGoodwillDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#IntangibleAssetsAndGoodwillDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/PropertyPlantAndEquipmentDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#PropertyPlantAndEquipmentDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/InventoriesDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#InventoriesDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfAcam2000BusinessDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#AcquisitionsAcquisitionOfAcam2000BusinessDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfPaxvaxDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#AcquisitionsAcquisitionOfPaxvaxDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfAdaptDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#AcquisitionsAcquisitionOfAdaptDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/DiscontinuedOperationsDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#DiscontinuedOperationsDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/RevenueRecognitionAccountsReceivableDetails" xlink:type="simple" xlink:href="ebs-20181231.xsd#RevenueRecognitionAccountsReceivableDetails" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="simple" xlink:href="ebs-20181231.xsd#ConsolidatedStatementsOfCashFlows" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" xlink:href="ebs-20181231.xsd#ConsolidatedStatementsOfComprehensiveIncome" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfOperations" xlink:type="simple" xlink:href="ebs-20181231.xsd#ConsolidatedStatementsOfOperations" />
  <link:roleRef roleURI="http://emergentbiosolutions.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="ebs-20181231.xsd#ConsolidatedBalanceSheets" />
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/ConsolidatedBalanceSheets">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="calculation: Assets to PropertyPlantAndEquipmentNet" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="IntangibleAssetsNetExcludingGoodwill" xlink:title="IntangibleAssetsNetExcludingGoodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="IntangibleAssetsNetExcludingGoodwill" xlink:title="calculation: Assets to IntangibleAssetsNetExcludingGoodwill" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="Goodwill" xlink:title="calculation: Assets to Goodwill" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetNoncurrent" xlink:label="DeferredTaxAssetsNetNoncurrent" xlink:title="DeferredTaxAssetsNetNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="DeferredTaxAssetsNetNoncurrent" xlink:title="calculation: Assets to DeferredTaxAssetsNetNoncurrent" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="OtherAssetsNoncurrent" xlink:title="OtherAssetsNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="OtherAssetsNoncurrent" xlink:title="calculation: Assets to OtherAssetsNoncurrent" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_InProcessResearchAndDevelopment" xlink:label="InProcessResearchAndDevelopment" xlink:title="InProcessResearchAndDevelopment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="InProcessResearchAndDevelopment" xlink:title="calculation: Assets to InProcessResearchAndDevelopment" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="calculation: AssetsCurrent to CashAndCashEquivalentsAtCarryingValue" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="AccountsReceivableNetCurrent" xlink:title="AccountsReceivableNetCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="AccountsReceivableNetCurrent" xlink:title="calculation: AssetsCurrent to AccountsReceivableNetCurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="InventoryNet" xlink:title="calculation: AssetsCurrent to InventoryNet" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:title="RestrictedCashAndCashEquivalentsAtCarryingValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:title="calculation: AssetsCurrent to RestrictedCashAndCashEquivalentsAtCarryingValue" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="IncomeTaxesReceivable" xlink:title="IncomeTaxesReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="IncomeTaxesReceivable" xlink:title="calculation: AssetsCurrent to IncomeTaxesReceivable" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="calculation: AssetsCurrent to PrepaidExpenseAndOtherAssetsCurrent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="DeferredTaxAssetsNetCurrent" xlink:title="DeferredTaxAssetsNetCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="DeferredTaxAssetsNetCurrent" xlink:title="calculation: AssetsCurrent to DeferredTaxAssetsNetCurrent" order="4.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsCurrent" xlink:title="calculation: Assets to AssetsCurrent" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="AccruedLiabilitiesCurrent" xlink:title="AccruedLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccruedLiabilitiesCurrent" xlink:title="calculation: LiabilitiesCurrent to AccruedLiabilitiesCurrent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="ContractWithCustomerLiabilityCurrent" xlink:title="ContractWithCustomerLiabilityCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="ContractWithCustomerLiabilityCurrent" xlink:title="calculation: LiabilitiesCurrent to ContractWithCustomerLiabilityCurrent" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxesPayableCurrent" xlink:label="TaxesPayableCurrent" xlink:title="TaxesPayableCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="TaxesPayableCurrent" xlink:title="calculation: LiabilitiesCurrent to TaxesPayableCurrent" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="AccountsPayableCurrent" xlink:title="AccountsPayableCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccountsPayableCurrent" xlink:title="calculation: LiabilitiesCurrent to AccountsPayableCurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="EmployeeRelatedLiabilitiesCurrent" xlink:title="EmployeeRelatedLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="EmployeeRelatedLiabilitiesCurrent" xlink:title="calculation: LiabilitiesCurrent to EmployeeRelatedLiabilitiesCurrent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_ContingentConsiderationCurrentPortion" xlink:label="ContingentConsiderationCurrentPortion" xlink:title="ContingentConsiderationCurrentPortion" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="ContingentConsiderationCurrentPortion" xlink:title="calculation: LiabilitiesCurrent to ContingentConsiderationCurrentPortion" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="NotesPayableCurrent" xlink:title="NotesPayableCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="NotesPayableCurrent" xlink:title="calculation: LiabilitiesCurrent to NotesPayableCurrent" order="8.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="LiabilitiesCurrent" xlink:title="calculation: Liabilities to LiabilitiesCurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="OtherLiabilitiesNoncurrent" xlink:title="OtherLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="OtherLiabilitiesNoncurrent" xlink:title="calculation: Liabilities to OtherLiabilitiesNoncurrent" order="11.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="LongTermDebtNoncurrent" xlink:title="LongTermDebtNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="LongTermDebtNoncurrent" xlink:title="calculation: Liabilities to LongTermDebtNoncurrent" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_ContingentConsiderationNetOfCurrentPortion" xlink:label="ContingentConsiderationNetOfCurrentPortion" xlink:title="ContingentConsiderationNetOfCurrentPortion" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="ContingentConsiderationNetOfCurrentPortion" xlink:title="calculation: Liabilities to ContingentConsiderationNetOfCurrentPortion" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent" xlink:label="ContractWithCustomerLiabilityNoncurrent" xlink:title="ContractWithCustomerLiabilityNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="ContractWithCustomerLiabilityNoncurrent" xlink:title="calculation: Liabilities to ContractWithCustomerLiabilityNoncurrent" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedIncomeTaxesNoncurrent" xlink:label="AccruedIncomeTaxesNoncurrent" xlink:title="AccruedIncomeTaxesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="AccruedIncomeTaxesNoncurrent" xlink:title="calculation: Liabilities to AccruedIncomeTaxesNoncurrent" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="DeferredTaxLiabilitiesNoncurrent" xlink:title="DeferredTaxLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="DeferredTaxLiabilitiesNoncurrent" xlink:title="calculation: Liabilities to DeferredTaxLiabilitiesNoncurrent" order="8.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="Liabilities" xlink:title="calculation: LiabilitiesAndStockholdersEquity to Liabilities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="PreferredStockValue" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to PreferredStockValue" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="CommonStockValue" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to CommonStockValue" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="TreasuryStockValue" xlink:title="TreasuryStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="TreasuryStockValue" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to TreasuryStockValue" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="AdditionalPaidInCapital" xlink:title="AdditionalPaidInCapital" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="AdditionalPaidInCapital" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to AdditionalPaidInCapital" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="calculation: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to RetainedEarningsAccumulatedDeficit" order="5.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: LiabilitiesAndStockholdersEquity to StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfOperations">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLoss" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: NetIncomeLoss to IncomeLossFromDiscontinuedOperationsNetOfTax" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeTaxExpenseBenefit" xlink:title="calculation: IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest to IncomeTaxExpenseBenefit" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="InvestmentIncomeInterest" xlink:title="calculation: NonoperatingIncomeExpense to InvestmentIncomeInterest" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="InterestExpense" xlink:title="calculation: NonoperatingIncomeExpense to InterestExpense" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="OtherNonoperatingIncomeExpense" xlink:title="OtherNonoperatingIncomeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="OtherNonoperatingIncomeExpense" xlink:title="calculation: NonoperatingIncomeExpense to OtherNonoperatingIncomeExpense" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="NonoperatingIncomeExpense" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments to NonoperatingIncomeExpense" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="SellingGeneralAndAdministrativeExpense" xlink:title="SellingGeneralAndAdministrativeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="SellingGeneralAndAdministrativeExpense" xlink:title="calculation: OperatingIncomeLoss to SellingGeneralAndAdministrativeExpense" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="CostOfGoodsAndServicesSold" xlink:title="CostOfGoodsAndServicesSold" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="CostOfGoodsAndServicesSold" xlink:title="calculation: OperatingIncomeLoss to CostOfGoodsAndServicesSold" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="RevenueFromContractWithCustomerExcludingAssessedTax" xlink:title="RevenueFromContractWithCustomerExcludingAssessedTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="RevenueFromContractWithCustomerExcludingAssessedTax" xlink:title="calculation: OperatingIncomeLoss to RevenueFromContractWithCustomerExcludingAssessedTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="ResearchAndDevelopmentExpense" xlink:title="ResearchAndDevelopmentExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="ResearchAndDevelopmentExpense" xlink:title="calculation: OperatingIncomeLoss to ResearchAndDevelopmentExpense" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="AmortizationOfIntangibleAssets" xlink:title="AmortizationOfIntangibleAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="AmortizationOfIntangibleAssets" xlink:title="calculation: OperatingIncomeLoss to AmortizationOfIntangibleAssets" order="4.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="OperatingIncomeLoss" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments to OperatingIncomeLoss" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="calculation: IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest to IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLoss" xlink:to="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: NetIncomeLoss to IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare" xlink:label="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare" xlink:title="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareBasic" xlink:to="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare" xlink:title="calculation: EarningsPerShareBasic to DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="IncomeLossFromContinuingOperationsPerBasicShare" xlink:title="IncomeLossFromContinuingOperationsPerBasicShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareBasic" xlink:to="IncomeLossFromContinuingOperationsPerBasicShare" xlink:title="calculation: EarningsPerShareBasic to IncomeLossFromContinuingOperationsPerBasicShare" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare" xlink:label="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare" xlink:title="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareDiluted" xlink:to="DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare" xlink:title="calculation: EarningsPerShareDiluted to DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="IncomeLossFromContinuingOperationsPerDilutedShare" xlink:title="IncomeLossFromContinuingOperationsPerDilutedShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareDiluted" xlink:to="IncomeLossFromContinuingOperationsPerDilutedShare" xlink:title="calculation: EarningsPerShareDiluted to IncomeLossFromContinuingOperationsPerDilutedShare" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="OperatingExpenses" xlink:title="OperatingExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingExpenses" xlink:to="SellingGeneralAndAdministrativeExpense" xlink:title="calculation: OperatingExpenses to SellingGeneralAndAdministrativeExpense" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingExpenses" xlink:to="ResearchAndDevelopmentExpense" xlink:title="calculation: OperatingExpenses to ResearchAndDevelopmentExpense" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingExpenses" xlink:to="CostOfGoodsAndServicesSold" xlink:title="calculation: OperatingExpenses to CostOfGoodsAndServicesSold" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingExpenses" xlink:to="AmortizationOfIntangibleAssets" xlink:title="calculation: OperatingExpenses to AmortizationOfIntangibleAssets" order="3.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfComprehensiveIncome">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="NetIncomeLoss" xlink:title="calculation: ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest to NetIncomeLoss" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="OtherComprehensiveIncomeLossNetOfTax" xlink:title="OtherComprehensiveIncomeLossNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossNetOfTax to OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossNetOfTax to OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" order="1.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="OtherComprehensiveIncomeLossNetOfTax" xlink:title="calculation: ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest to OtherComprehensiveIncomeLossNetOfTax" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfCashFlows">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:title="CashAndCashEquivalentsPeriodIncreaseDecrease" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="EffectOfExchangeRateOnCashAndCashEquivalents" xlink:title="EffectOfExchangeRateOnCashAndCashEquivalents" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="EffectOfExchangeRateOnCashAndCashEquivalents" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to EffectOfExchangeRateOnCashAndCashEquivalents" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="DeferredIncomeTaxExpenseBenefit" xlink:title="DeferredIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="DeferredIncomeTaxExpenseBenefit" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to DeferredIncomeTaxExpenseBenefit" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="IncreaseDecreaseInAccountsPayable" xlink:title="IncreaseDecreaseInAccountsPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccountsPayable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccountsPayable" order="18.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="IncreaseDecreaseInIncomeTaxesReceivable" xlink:title="IncreaseDecreaseInIncomeTaxesReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInIncomeTaxesReceivable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInIncomeTaxesReceivable" order="16.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="IncreaseDecreaseInAccruedLiabilities" xlink:title="IncreaseDecreaseInAccruedLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccruedLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccruedLiabilities" order="21.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="IncreaseDecreaseInAccountsReceivable" xlink:title="IncreaseDecreaseInAccountsReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccountsReceivable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccountsReceivable" order="14.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherDepreciationAndAmortization" xlink:label="OtherDepreciationAndAmortization" xlink:title="OtherDepreciationAndAmortization" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="OtherDepreciationAndAmortization" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to OtherDepreciationAndAmortization" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ShareBasedCompensation" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ShareBasedCompensation" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="OtherNoncashIncomeExpense" xlink:title="OtherNoncashIncomeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="OtherNoncashIncomeExpense" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to OtherNoncashIncomeExpense" order="4.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:title="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" order="13.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="IncreaseDecreaseInContractWithCustomerLiability" xlink:title="IncreaseDecreaseInContractWithCustomerLiability" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInContractWithCustomerLiability" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInContractWithCustomerLiability" order="23.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:label="ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:title="ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" order="19.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="IncreaseDecreaseInInventories" xlink:title="IncreaseDecreaseInInventories" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInInventories" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInInventories" order="15.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf" xlink:label="ImpairmentOfLongLivedAssetsToBeDisposedOf" xlink:title="ImpairmentOfLongLivedAssetsToBeDisposedOf" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ImpairmentOfLongLivedAssetsToBeDisposedOf" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ImpairmentOfLongLivedAssetsToBeDisposedOf" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProfitLoss" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProfitLoss" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="17.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_ChangeInFairValueOfContingentConsideration" xlink:label="ChangeInFairValueOfContingentConsideration" xlink:title="ChangeInFairValueOfContingentConsideration" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ChangeInFairValueOfContingentConsideration" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ChangeInFairValueOfContingentConsideration" order="11.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities" xlink:label="IncreaseDecreaseInEmployeeRelatedLiabilities" xlink:title="IncreaseDecreaseInEmployeeRelatedLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInEmployeeRelatedLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInEmployeeRelatedLiabilities" order="22.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_ProvisionForChargebacksChargedToEarnings" xlink:label="ProvisionForChargebacksChargedToEarnings" xlink:title="ProvisionForChargebacksChargedToEarnings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProvisionForChargebacksChargedToEarnings" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProvisionForChargebacksChargedToEarnings" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProvisionForDoubtfulAccounts" order="20.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInOperatingActivities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="ProceedsFromStockOptionsExercised" xlink:title="ProceedsFromStockOptionsExercised" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromStockOptionsExercised" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromStockOptionsExercised" order="13.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromPaymentsForOtherFinancingActivities" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="ProceedsFromIssuanceOfLongTermDebt" xlink:title="ProceedsFromIssuanceOfLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromIssuanceOfLongTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromIssuanceOfLongTermDebt" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_ContingentValueRightPayment" xlink:label="ContingentValueRightPayment" xlink:title="ContingentValueRightPayment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ContingentValueRightPayment" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ContingentValueRightPayment" order="4.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:title="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsRelatedToTaxWithholdingForShareBasedCompensation" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:title="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" order="17.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="RepaymentsOfNotesPayable" xlink:title="RepaymentsOfNotesPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="RepaymentsOfNotesPayable" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to RepaymentsOfNotesPayable" order="10.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:label="ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:title="ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" order="15.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="PaymentsForRepurchaseOfCommonStock" xlink:title="PaymentsForRepurchaseOfCommonStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsForRepurchaseOfCommonStock" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsForRepurchaseOfCommonStock" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="RepaymentsOfLongTermDebt" xlink:title="RepaymentsOfLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="RepaymentsOfLongTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to RepaymentsOfLongTermDebt" order="9.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DistributionOfAptevo" xlink:label="DistributionOfAptevo" xlink:title="DistributionOfAptevo" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="DistributionOfAptevo" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to DistributionOfAptevo" order="16.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="PaymentsOfDebtIssuanceCosts" xlink:title="PaymentsOfDebtIssuanceCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsOfDebtIssuanceCosts" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsOfDebtIssuanceCosts" order="5.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInFinancingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInFinancingActivities" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquirePropertyPlantAndEquipment" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="PaymentsToAcquireBusinessesNetOfCashAcquired" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireBusinessesNetOfCashAcquired" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="ProceedsFromSaleOfProductiveAssets" xlink:title="ProceedsFromSaleOfProductiveAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleOfProductiveAssets" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleOfProductiveAssets" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="PaymentsToAcquireProductiveAssets" xlink:title="PaymentsToAcquireProductiveAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireProductiveAssets" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireProductiveAssets" order="6.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInInvestingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInInvestingActivities" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/RevenueRecognitionAccountsReceivableDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="AccountsReceivableNetCurrent" xlink:title="AccountsReceivableNetCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnbilledContractsReceivable" xlink:label="UnbilledContractsReceivable" xlink:title="UnbilledContractsReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AccountsReceivableNetCurrent" xlink:to="UnbilledContractsReceivable" xlink:title="calculation: AccountsReceivableNetCurrent to UnbilledContractsReceivable" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BilledContractReceivables" xlink:label="BilledContractReceivables" xlink:title="BilledContractReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AccountsReceivableNetCurrent" xlink:to="BilledContractReceivables" xlink:title="calculation: AccountsReceivableNetCurrent to BilledContractReceivables" order="0.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/DiscontinuedOperationsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:label="NetCashProvidedByUsedInDiscontinuedOperations" xlink:title="NetCashProvidedByUsedInDiscontinuedOperations" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInDiscontinuedOperations" xlink:to="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:title="calculation: NetCashProvidedByUsedInDiscontinuedOperations to CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInDiscontinuedOperations" xlink:to="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:title="calculation: NetCashProvidedByUsedInDiscontinuedOperations to CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInDiscontinuedOperations" xlink:to="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:title="calculation: NetCashProvidedByUsedInDiscontinuedOperations to CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:label="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:title="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:label="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:title="DisposalGroupIncludingDiscontinuedOperationRevenue" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DisposalGroupIncludingDiscontinuedOperationContractsRevenue" xlink:label="DisposalGroupIncludingDiscontinuedOperationContractsRevenue" xlink:title="DisposalGroupIncludingDiscontinuedOperationContractsRevenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:to="DisposalGroupIncludingDiscontinuedOperationContractsRevenue" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationRevenue to DisposalGroupIncludingDiscontinuedOperationContractsRevenue" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DisposalGroupIncludingDiscontinuedOperationSalesRevenueGoodsNet" xlink:label="DisposalGroupIncludingDiscontinuedOperationSalesRevenueGoodsNet" xlink:title="DisposalGroupIncludingDiscontinuedOperationSalesRevenueGoodsNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:to="DisposalGroupIncludingDiscontinuedOperationSalesRevenueGoodsNet" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationRevenue to DisposalGroupIncludingDiscontinuedOperationSalesRevenueGoodsNet" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:to="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss to DisposalGroupIncludingDiscontinuedOperationRevenue" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" xlink:label="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" xlink:title="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:to="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss to DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" xlink:label="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" xlink:title="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:to="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss to DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:label="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:title="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:to="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss to DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax" xlink:label="DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax" xlink:title="DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalBeforeIncomeTax" xlink:label="DiscontinuedOperationProvisionForLossGainOnDisposalBeforeIncomeTax" xlink:title="DiscontinuedOperationProvisionForLossGainOnDisposalBeforeIncomeTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax" xlink:to="DiscontinuedOperationProvisionForLossGainOnDisposalBeforeIncomeTax" xlink:title="calculation: DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax to DiscontinuedOperationProvisionForLossGainOnDisposalBeforeIncomeTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" xlink:label="DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" xlink:title="DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax" xlink:to="DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" xlink:title="calculation: DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax to DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:label="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:title="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:to="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingExpense to DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:to="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingExpense to DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:to="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" xlink:title="calculation: DisposalGroupIncludingDiscontinuedOperationOperatingExpense to DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfAdaptDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" order="8.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentConsideration" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentConsideration" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentConsideration" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentConsideration" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentConsideration" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfPaxvaxDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherLiabilities" order="7.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets" order="3.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/AcquisitionsAcquisitionOfAcam2000BusinessDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="calculation: BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/InventoriesDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves" xlink:label="InventoryWorkInProcessNetOfReserves" xlink:title="InventoryWorkInProcessNetOfReserves" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InventoryNet" xlink:to="InventoryWorkInProcessNetOfReserves" xlink:title="calculation: InventoryNet to InventoryWorkInProcessNetOfReserves" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves" xlink:label="InventoryRawMaterialsAndSuppliesNetOfReserves" xlink:title="InventoryRawMaterialsAndSuppliesNetOfReserves" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InventoryNet" xlink:to="InventoryRawMaterialsAndSuppliesNetOfReserves" xlink:title="calculation: InventoryNet to InventoryRawMaterialsAndSuppliesNetOfReserves" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:label="InventoryFinishedGoodsNetOfReserves" xlink:title="InventoryFinishedGoodsNetOfReserves" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InventoryNet" xlink:to="InventoryFinishedGoodsNetOfReserves" xlink:title="calculation: InventoryNet to InventoryFinishedGoodsNetOfReserves" order="3.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/PropertyPlantAndEquipmentDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="PropertyPlantAndEquipmentGross" xlink:title="PropertyPlantAndEquipmentGross" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="PropertyPlantAndEquipmentGross" xlink:title="calculation: PropertyPlantAndEquipmentNet to PropertyPlantAndEquipmentGross" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="calculation: PropertyPlantAndEquipmentNet to AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="1.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/IntangibleAssetsAndGoodwillDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="FiniteLivedIntangibleAssetsNet" xlink:title="FiniteLivedIntangibleAssetsNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/LongtermDebtDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="calculation: LongTermDebt to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="calculation: LongTermDebt to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="calculation: LongTermDebt to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter" xlink:title="calculation: LongTermDebt to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="calculation: LongTermDebt to LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" order="0.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/IncomeTaxesComponentsOfProvisionsForIncomeTaxesDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:label="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:title="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="DeferredFederalIncomeTaxExpenseBenefit" xlink:title="DeferredFederalIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:to="DeferredFederalIncomeTaxExpenseBenefit" xlink:title="calculation: DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment to DeferredFederalIncomeTaxExpenseBenefit" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:title="DeferredStateAndLocalIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:to="DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:title="calculation: DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment to DeferredStateAndLocalIncomeTaxExpenseBenefit" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="DeferredForeignIncomeTaxExpenseBenefit" xlink:title="DeferredForeignIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:to="DeferredForeignIncomeTaxExpenseBenefit" xlink:title="calculation: DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment to DeferredForeignIncomeTaxExpenseBenefit" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" xlink:title="calculation: IncomeTaxExpenseBenefit to DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="CurrentIncomeTaxExpenseBenefit" xlink:title="CurrentIncomeTaxExpenseBenefit" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="CurrentFederalTaxExpenseBenefit" xlink:title="CurrentFederalTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CurrentIncomeTaxExpenseBenefit" xlink:to="CurrentFederalTaxExpenseBenefit" xlink:title="calculation: CurrentIncomeTaxExpenseBenefit to CurrentFederalTaxExpenseBenefit" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="CurrentStateAndLocalTaxExpenseBenefit" xlink:title="CurrentStateAndLocalTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CurrentIncomeTaxExpenseBenefit" xlink:to="CurrentStateAndLocalTaxExpenseBenefit" xlink:title="calculation: CurrentIncomeTaxExpenseBenefit to CurrentStateAndLocalTaxExpenseBenefit" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="CurrentForeignTaxExpenseBenefit" xlink:title="CurrentForeignTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CurrentIncomeTaxExpenseBenefit" xlink:to="CurrentForeignTaxExpenseBenefit" xlink:title="calculation: CurrentIncomeTaxExpenseBenefit to CurrentForeignTaxExpenseBenefit" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="CurrentIncomeTaxExpenseBenefit" xlink:title="calculation: IncomeTaxExpenseBenefit to CurrentIncomeTaxExpenseBenefit" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/IncomeTaxesNetDeferredTaxAssetLiabilityDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="DeferredTaxAssetsLiabilitiesNet" xlink:title="DeferredTaxAssetsLiabilitiesNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="DeferredIncomeTaxLiabilities" xlink:title="DeferredIncomeTaxLiabilities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="DeferredTaxLiabilitiesOther" xlink:title="DeferredTaxLiabilitiesOther" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxLiabilities" xlink:to="DeferredTaxLiabilitiesOther" xlink:title="calculation: DeferredIncomeTaxLiabilities to DeferredTaxLiabilitiesOther" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:title="DeferredTaxLiabilitiesPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxLiabilities" xlink:to="DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:title="calculation: DeferredIncomeTaxLiabilities to DeferredTaxLiabilitiesPropertyPlantAndEquipment" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:title="DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredIncomeTaxLiabilities" xlink:to="DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:title="calculation: DeferredIncomeTaxLiabilities to DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsLiabilitiesNet" xlink:to="DeferredIncomeTaxLiabilities" xlink:title="calculation: DeferredTaxAssetsLiabilitiesNet to DeferredIncomeTaxLiabilities" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="DeferredTaxAssetsValuationAllowance" xlink:title="DeferredTaxAssetsValuationAllowance" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsLiabilitiesNet" xlink:to="DeferredTaxAssetsValuationAllowance" xlink:title="calculation: DeferredTaxAssetsLiabilitiesNet to DeferredTaxAssetsValuationAllowance" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="DeferredTaxAssetsGross" xlink:title="DeferredTaxAssetsGross" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="DeferredTaxAssetsOperatingLossCarryforwards" xlink:title="DeferredTaxAssetsOperatingLossCarryforwards" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsOperatingLossCarryforwards" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsOperatingLossCarryforwards" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_NetOperatingLossCarryforwardState" xlink:label="NetOperatingLossCarryforwardState" xlink:title="NetOperatingLossCarryforwardState" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="NetOperatingLossCarryforwardState" xlink:title="calculation: DeferredTaxAssetsGross to NetOperatingLossCarryforwardState" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch" xlink:label="DeferredTaxAssetsTaxCreditCarryforwardsResearch" xlink:title="DeferredTaxAssetsTaxCreditCarryforwardsResearch" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsTaxCreditCarryforwardsResearch" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsTaxCreditCarryforwardsResearch" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_DeferredTaxAssetsTaxCreditCarryforwardsScientificResearchAndExperimentalDevelopment" xlink:label="DeferredTaxAssetsTaxCreditCarryforwardsScientificResearchAndExperimentalDevelopment" xlink:title="DeferredTaxAssetsTaxCreditCarryforwardsScientificResearchAndExperimentalDevelopment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsTaxCreditCarryforwardsScientificResearchAndExperimentalDevelopment" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsTaxCreditCarryforwardsScientificResearchAndExperimentalDevelopment" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:title="DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:label="DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:title="DeferredTaxAssetsOperatingLossCarryforwardsForeign" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsOperatingLossCarryforwardsForeign" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsInventory" xlink:label="DeferredTaxAssetsInventory" xlink:title="DeferredTaxAssetsInventory" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsInventory" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsInventory" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="DeferredTaxAssetsOther" xlink:title="DeferredTaxAssetsOther" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsOther" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsOther" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_StateResearchAndDevelopmentCarryforward" xlink:label="StateResearchAndDevelopmentCarryforward" xlink:title="StateResearchAndDevelopmentCarryforward" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="StateResearchAndDevelopmentCarryforward" xlink:title="calculation: DeferredTaxAssetsGross to StateResearchAndDevelopmentCarryforward" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="DeferredTaxAssetsDeferredIncome" xlink:title="DeferredTaxAssetsDeferredIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsDeferredIncome" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsDeferredIncome" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsLiabilitiesNet" xlink:to="DeferredTaxAssetsGross" xlink:title="calculation: DeferredTaxAssetsLiabilitiesNet to DeferredTaxAssetsGross" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="DeferredTaxLiabilities" xlink:title="DeferredTaxLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxLiabilities" xlink:to="DeferredTaxAssetsGross" xlink:title="calculation: DeferredTaxLiabilities to DeferredTaxAssetsGross" order="0.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxLiabilities" xlink:to="DeferredIncomeTaxLiabilities" xlink:title="calculation: DeferredTaxLiabilities to DeferredIncomeTaxLiabilities" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxLiabilities" xlink:to="DeferredTaxAssetsValuationAllowance" xlink:title="calculation: DeferredTaxLiabilities to DeferredTaxAssetsValuationAllowance" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/IncomeTaxesReconciliationDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossIncludingPortionAttributableToNoncontrollingInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:title="calculation: IncomeLossIncludingPortionAttributableToNoncontrollingInterest to IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:title="calculation: IncomeLossIncludingPortionAttributableToNoncontrollingInterest to IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017GlobalIntangibleLowTaxedIncomeTaxNet" xlink:label="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017GlobalIntangibleLowTaxedIncomeTaxNet" xlink:title="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017GlobalIntangibleLowTaxedIncomeTaxNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017GlobalIntangibleLowTaxedIncomeTaxNet" xlink:title="calculation: IncomeTaxExpenseBenefit to EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017GlobalIntangibleLowTaxedIncomeTaxNet" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:title="IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:title="IncomeTaxReconciliationStateAndLocalIncomeTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationStateAndLocalIncomeTaxes" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:label="IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:title="IncomeTaxReconciliationForeignIncomeTaxRateDifferential" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationForeignIncomeTaxRateDifferential" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits" xlink:label="IncomeTaxReconciliationTaxCredits" xlink:title="IncomeTaxReconciliationTaxCredits" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationTaxCredits" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationTaxCredits" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount" xlink:label="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount" xlink:title="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount" xlink:title="calculation: IncomeTaxExpenseBenefit to EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:label="IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:title="IncomeTaxReconciliationChangeInEnactedTaxRate" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationChangeInEnactedTaxRate" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:title="IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="IncomeTaxReconciliationOtherAdjustments" xlink:title="IncomeTaxReconciliationOtherAdjustments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationOtherAdjustments" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationOtherAdjustments" order="11.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_EffectiveIncomeTaxRateReconciliationPermanentDifference" xlink:label="EffectiveIncomeTaxRateReconciliationPermanentDifference" xlink:title="EffectiveIncomeTaxRateReconciliationPermanentDifference" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="EffectiveIncomeTaxRateReconciliationPermanentDifference" xlink:title="calculation: IncomeTaxExpenseBenefit to EffectiveIncomeTaxRateReconciliationPermanentDifference" order="12.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_EffectiveIncomeTaxRateReconciliationTransactionCosts" xlink:label="EffectiveIncomeTaxRateReconciliationTransactionCosts" xlink:title="EffectiveIncomeTaxRateReconciliationTransactionCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="EffectiveIncomeTaxRateReconciliationTransactionCosts" xlink:title="calculation: IncomeTaxExpenseBenefit to EffectiveIncomeTaxRateReconciliationTransactionCosts" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes" xlink:label="IncomeTaxReconciliationPriorYearIncomeTaxes" xlink:title="IncomeTaxReconciliationPriorYearIncomeTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationPriorYearIncomeTaxes" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationPriorYearIncomeTaxes" order="4.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanComponentsOfNetPeriodicPensionCostDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:title="DefinedBenefitPlanNetPeriodicBenefitCost" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="DefinedBenefitPlanServiceCost" xlink:title="DefinedBenefitPlanServiceCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanServiceCost" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanServiceCost" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="DefinedBenefitPlanInterestCost" xlink:title="DefinedBenefitPlanInterestCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanInterestCost" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanInterestCost" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="DefinedBenefitPlanAmortizationOfGainsLosses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanAmortizationOfGainsLosses" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="DefinedBenefitPlanExpectedReturnOnPlanAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanExpectedReturnOnPlanAssets" order="2.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanExpectedFutureBenefitsPaymentsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:title="calculation: DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear to DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" order="5.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/DefinedBenefitAnd401KSavingsPlanAccumulatedOtherComprehensiveLossBeforeIncomeTaxDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:title="calculation: DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:title="calculation: DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" order="0.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/LeasesDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="OperatingLeasesFutureMinimumPaymentsDue" xlink:title="OperatingLeasesFutureMinimumPaymentsDue" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueInTwoYears" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInFourYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueInFourYears" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:title="OperatingLeasesFutureMinimumPaymentsDueCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueCurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueInThreeYears" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueInFiveYears" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:title="OperatingLeasesFutureMinimumPaymentsDueThereafter" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:title="calculation: OperatingLeasesFutureMinimumPaymentsDue to OperatingLeasesFutureMinimumPaymentsDueThereafter" order="6.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/EarningsPerShareDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to WeightedAverageNumberOfSharesOutstandingBasic" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:title="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:label="IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:title="IncrementalCommonSharesAttributableToConversionOfDebtSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToConversionOfDebtSecurities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_AdjustedNetLoss" xlink:label="AdjustedNetLoss" xlink:title="AdjustedNetLoss" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_NetIncomeAdjustedFromContinuingOperations" xlink:label="NetIncomeAdjustedFromContinuingOperations" xlink:title="NetIncomeAdjustedFromContinuingOperations" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeAdjustedFromContinuingOperations" xlink:to="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: NetIncomeAdjustedFromContinuingOperations to IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestOnConvertibleDebtNetOfTax" xlink:label="InterestOnConvertibleDebtNetOfTax" xlink:title="InterestOnConvertibleDebtNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeAdjustedFromContinuingOperations" xlink:to="InterestOnConvertibleDebtNetOfTax" xlink:title="calculation: NetIncomeAdjustedFromContinuingOperations to InterestOnConvertibleDebtNetOfTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ebs-20181231.xsd#ebs_AmortizationOfIssuanceCostOnConvertibleDebtNetOfTax" xlink:label="AmortizationOfIssuanceCostOnConvertibleDebtNetOfTax" xlink:title="AmortizationOfIssuanceCostOnConvertibleDebtNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeAdjustedFromContinuingOperations" xlink:to="AmortizationOfIssuanceCostOnConvertibleDebtNetOfTax" xlink:title="calculation: NetIncomeAdjustedFromContinuingOperations to AmortizationOfIssuanceCostOnConvertibleDebtNetOfTax" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustedNetLoss" xlink:to="NetIncomeAdjustedFromContinuingOperations" xlink:title="calculation: AdjustedNetLoss to NetIncomeAdjustedFromContinuingOperations" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustedNetLoss" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: AdjustedNetLoss to IncomeLossFromDiscontinuedOperationsNetOfTax" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://emergentbiosolutions.com/role/QuarterlyFinancialDataUnauditedDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: ProfitLoss to IncomeLossFromDiscontinuedOperationsNetOfTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: ProfitLoss to IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" order="0.0" weight="1.0" />
  </link:calculationLink>
</link:linkbase>
