<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019ff773-d7d2-7c0b-8d59-c33160a99a9b,g:59831d02-f16b-4e34-ba2f-b523fff1e101-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" 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">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="simple" xlink:href="reyn-20260930.xsd#CondensedConsolidatedStatementsofIncome"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019ff773-d88d-7b0c-a1da-189c88b36b16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ff773-d88d-74ab-96f1-fb4f86eeae14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019ff773-d88d-7b0c-a1da-189c88b36b16" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ff773-d88d-74ab-96f1-fb4f86eeae14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019ff773-d88d-756e-8444-568e93fb1b60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019ff773-d88d-7b0c-a1da-189c88b36b16" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019ff773-d88d-756e-8444-568e93fb1b60" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-71f1-b364-588f983df59f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-7b8d-b604-a2a72d30b911" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-71f1-b364-588f983df59f" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-7b8d-b604-a2a72d30b911" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_reyn_GainLossOnDebtModification_019ff773-d88d-7d8b-8004-93e0679e1641" xlink:href="reyn-20260930.xsd#reyn_GainLossOnDebtModification"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-71f1-b364-588f983df59f" xlink:to="loc_reyn_GainLossOnDebtModification_019ff773-d88d-7d8b-8004-93e0679e1641" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019ff773-d88d-723c-8068-383d9823ed14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-71f1-b364-588f983df59f" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019ff773-d88d-723c-8068-383d9823ed14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-73c3-af6a-f6c1367d2612" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019ff773-d88d-74cd-a122-cad1b764f495" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-73c3-af6a-f6c1367d2612" xlink:to="loc_us-gaap_GrossProfit_019ff773-d88d-74cd-a122-cad1b764f495" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019ff773-d88d-73bf-ad06-f776898e2b62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-73c3-af6a-f6c1367d2612" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019ff773-d88d-73bf-ad06-f776898e2b62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019ff773-d88d-7968-b5f0-9b66ecf7b705" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_019ff773-d88d-73c3-af6a-f6c1367d2612" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019ff773-d88d-7968-b5f0-9b66ecf7b705" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ff773-d88d-706b-9abc-fdd74c742de4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7ce3-ab8a-5ef387da3b66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019ff773-d88d-706b-9abc-fdd74c742de4" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7ce3-ab8a-5ef387da3b66" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019ff773-d88d-7dcb-bb75-c662a89f994f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019ff773-d88d-706b-9abc-fdd74c742de4" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019ff773-d88d-7dcb-bb75-c662a89f994f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="reyn-20260930.xsd#CondensedConsolidatedStatementsofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7ee6-bbc7-38719771e8cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_019ff773-d88d-7079-917a-951587e053b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7ee6-bbc7-38719771e8cf" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_019ff773-d88d-7079-917a-951587e053b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019ff773-d88d-7f4c-8903-b9646fa4cd27" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7ee6-bbc7-38719771e8cf" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019ff773-d88d-7f4c-8903-b9646fa4cd27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019ff773-d88d-7db7-97b7-6d742d14115b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7ee6-bbc7-38719771e8cf" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019ff773-d88d-7db7-97b7-6d742d14115b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019ff773-d88d-71f8-83d4-6dc08d290dc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ff773-d88d-774d-8118-c0b3e4625f0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019ff773-d88d-71f8-83d4-6dc08d290dc2" xlink:to="loc_us-gaap_NetIncomeLoss_019ff773-d88d-774d-8118-c0b3e4625f0d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7c66-a4c3-34bac3469187" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019ff773-d88d-71f8-83d4-6dc08d290dc2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019ff773-d88d-7c66-a4c3-34bac3469187" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="reyn-20260930.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019ff773-d88d-7d85-9746-573b80f54377" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019ff773-d88d-7d85-9746-573b80f54377" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019ff773-d88d-7d4f-aefa-17ae9d5aca29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019ff773-d88d-7d4f-aefa-17ae9d5aca29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_019ff773-d88d-777b-a378-4a8f42218619" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:to="loc_us-gaap_AccountsAndOtherReceivablesNetCurrent_019ff773-d88d-777b-a378-4a8f42218619" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019ff773-d88d-7d03-86ed-af158f62a63d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:to="loc_us-gaap_InventoryNet_019ff773-d88d-7d03-86ed-af158f62a63d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019ff773-d88d-71b0-bae4-79fb1281afef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019ff773-d88d-7f85-9348-5746174d90fd" xlink:to="loc_us-gaap_OtherAssetsCurrent_019ff773-d88d-71b0-bae4-79fb1281afef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-727a-b425-ceda2796360e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-727a-b425-ceda2796360e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019ff773-d88d-7f78-a73b-596d1c26756b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019ff773-d88d-7f78-a73b-596d1c26756b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019ff773-d88d-7095-a0ee-04b0bb08d473" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019ff773-d88d-7095-a0ee-04b0bb08d473" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019ff773-d88d-7c16-b9b6-f4598a211a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019ff773-d88d-7c16-b9b6-f4598a211a7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PostemploymentBenefitsLiabilityNoncurrent_019ff773-d88d-79a0-bce8-d67fa13ab537" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PostemploymentBenefitsLiabilityNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_PostemploymentBenefitsLiabilityNoncurrent_019ff773-d88d-79a0-bce8-d67fa13ab537" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019ff773-d88d-7c0f-9ead-567ad0a3597f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019ff773-d88d-74cb-99e1-31d555f91fd0" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019ff773-d88d-7c0f-9ead-567ad0a3597f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019ff773-d88d-7257-93e1-10ee80340c32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_AssetsCurrent_019ff773-d88d-7257-93e1-10ee80340c32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019ff773-d88d-7bf1-9e21-179b88ccd0fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019ff773-d88d-7bf1-9e21-179b88ccd0fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019ff773-d88d-7401-89fc-4e2a3861e5b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019ff773-d88d-7401-89fc-4e2a3861e5b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019ff773-d88d-7c7a-8500-afba45266927" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_Goodwill_019ff773-d88d-7c7a-8500-afba45266927" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019ff773-d88d-7138-a374-fac9c10d3bbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019ff773-d88d-7138-a374-fac9c10d3bbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019ff773-d88d-7489-a8d9-8a49f52c05e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019ff773-d88d-7d53-bb7c-67d901423921" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019ff773-d88d-7489-a8d9-8a49f52c05e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ff773-d88d-7421-b8c0-280970d3e332" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019ff773-d88d-7073-9913-a74557192711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019ff773-d88d-7421-b8c0-280970d3e332" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019ff773-d88d-7073-9913-a74557192711" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019ff773-d88d-78a0-95cf-947d8e224c78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019ff773-d88d-7421-b8c0-280970d3e332" xlink:to="loc_us-gaap_CommonStockValue_019ff773-d88d-78a0-95cf-947d8e224c78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019ff773-d88d-70dc-85e2-672d8b40bbf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019ff773-d88d-7421-b8c0-280970d3e332" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019ff773-d88d-70dc-85e2-672d8b40bbf8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019ff773-d88d-7c09-8967-2e3359294a88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019ff773-d88d-7421-b8c0-280970d3e332" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019ff773-d88d-7c09-8967-2e3359294a88" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-7b79-83ec-5aa70bafbfa9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019ff773-d88d-7e0f-99e4-33c3c3e9d87c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-7b79-83ec-5aa70bafbfa9" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019ff773-d88d-7e0f-99e4-33c3c3e9d87c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019ff773-d88d-7162-b532-6342ed3dd0c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-7b79-83ec-5aa70bafbfa9" xlink:to="loc_us-gaap_AccountsPayableCurrent_019ff773-d88d-7162-b532-6342ed3dd0c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019ff773-d88d-78cd-bf68-9e9488a42163" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-7b79-83ec-5aa70bafbfa9" xlink:to="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019ff773-d88d-78cd-bf68-9e9488a42163" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019ff773-d88d-7ae2-b830-9b81e9b9e33c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019ff773-d88d-7b79-83ec-5aa70bafbfa9" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019ff773-d88d-7ae2-b830-9b81e9b9e33c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019ff773-d88d-7bc6-b453-d44e1c65265a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019ff773-d88d-7fbd-a8bc-a440decc2f65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019ff773-d88d-7bc6-b453-d44e1c65265a" xlink:to="loc_us-gaap_Liabilities_019ff773-d88d-7fbd-a8bc-a440decc2f65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019ff773-d88d-7682-bc55-352b59f67f64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019ff773-d88d-7bc6-b453-d44e1c65265a" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019ff773-d88d-7682-bc55-352b59f67f64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ff773-d88d-73d8-96f4-00b6f4c00c40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019ff773-d88d-7bc6-b453-d44e1c65265a" xlink:to="loc_us-gaap_StockholdersEquity_019ff773-d88d-73d8-96f4-00b6f4c00c40" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="reyn-20260930.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ff773-d88d-73a2-b939-dc19d81c0a12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_NetIncomeLoss_019ff773-d88d-73a2-b939-dc19d81c0a12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019ff773-d88d-7c24-9143-38e877ce7df0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019ff773-d88d-7c24-9143-38e877ce7df0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit_019ff773-d88d-7ca4-ad50-ed86f78ce881" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit_019ff773-d88d-7ca4-ad50-ed86f78ce881" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019ff773-d88d-7424-b7de-9a2bc9490d08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_ShareBasedCompensation_019ff773-d88d-7424-b7de-9a2bc9490d08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019ff773-d88d-79b9-9c9d-c33a770cd99e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019ff773-d88d-79b9-9c9d-c33a770cd99e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables_019ff773-d88d-7dbc-b269-a38d9c5faf03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherReceivables"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherReceivables_019ff773-d88d-7dbc-b269-a38d9c5faf03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_019ff773-d88d-7c9f-b889-31d04407c6be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_019ff773-d88d-7c9f-b889-31d04407c6be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019ff773-d88d-7f92-8e04-5670e74b15bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019ff773-d88d-7f92-8e04-5670e74b15bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_019ff773-d88d-719e-b665-2711c73321b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_019ff773-d88d-719e-b665-2711c73321b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_019ff773-d88d-7df5-a30c-90582c46e95b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_019ff773-d88d-7df5-a30c-90582c46e95b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_019ff773-d88d-7fe5-b9b0-fd6555fa5814" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_019ff773-d88d-7fe5-b9b0-fd6555fa5814" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_019ff773-d88d-75f9-8265-e7bc20d824d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_019ff773-d88d-75f9-8265-e7bc20d824d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_019ff773-d88d-752e-ae38-b4919f63c705" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-7f8e-ac8b-980ce7616804" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_019ff773-d88d-752e-ae38-b4919f63c705" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019ff773-d88d-7822-9231-5d4b5f18303f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019ff773-d88d-7cf3-8b2c-fe9919a6f6eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019ff773-d88d-7822-9231-5d4b5f18303f" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019ff773-d88d-7cf3-8b2c-fe9919a6f6eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019ff773-d88d-70c6-90c3-4570e857c99a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-747c-8b22-92aa3b3abbc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019ff773-d88d-70c6-90c3-4570e857c99a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019ff773-d88d-747c-8b22-92aa3b3abbc2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019ff773-d88d-7546-82c1-3e96c6255144" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019ff773-d88d-70c6-90c3-4570e857c99a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019ff773-d88d-7546-82c1-3e96c6255144" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-71d3-b999-6a94f33015e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019ff773-d88d-70c6-90c3-4570e857c99a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-71d3-b999-6a94f33015e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_019ff773-d88d-7671-9592-f21c8db9f0bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:to="loc_us-gaap_PaymentsOfDividends_019ff773-d88d-7671-9592-f21c8db9f0bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019ff773-d88d-709f-9d7d-1875686b80d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019ff773-d88d-709f-9d7d-1875686b80d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019ff773-d88d-7270-9ddd-b76245c5baf9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019ff773-d88d-7270-9ddd-b76245c5baf9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt_019ff773-d88d-7184-a869-5a8eae70c125" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt_019ff773-d88d-7184-a869-5a8eae70c125" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019ff773-d88d-745d-86ca-dbf796c497f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019ff773-d88d-72bb-9ef1-7e89510e24b1" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019ff773-d88d-745d-86ca-dbf796c497f0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/InventoriesDetails" xlink:type="simple" xlink:href="reyn-20260930.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019ff773-d88d-73bc-b5d6-ae1791e66df8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterials_019ff773-d88d-706a-b8bd-554f9e588431" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterials"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019ff773-d88d-73bc-b5d6-ae1791e66df8" xlink:to="loc_us-gaap_InventoryRawMaterials_019ff773-d88d-706a-b8bd-554f9e588431" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcess_019ff773-d88d-7806-aa2b-4d267629cd9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryWorkInProcess"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019ff773-d88d-73bc-b5d6-ae1791e66df8" xlink:to="loc_us-gaap_InventoryWorkInProcess_019ff773-d88d-7806-aa2b-4d267629cd9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoods_019ff773-d88d-7817-b5bf-6f1413f0f674" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoods"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019ff773-d88d-73bc-b5d6-ae1791e66df8" xlink:to="loc_us-gaap_InventoryFinishedGoods_019ff773-d88d-7817-b5bf-6f1413f0f674" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherInventoriesSpareParts_019ff773-d88d-7d3f-bee0-69cd039786fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherInventoriesSpareParts"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019ff773-d88d-73bc-b5d6-ae1791e66df8" xlink:to="loc_us-gaap_OtherInventoriesSpareParts_019ff773-d88d-7d3f-bee0-69cd039786fa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/DebtScheduleofLongtermDebtDetails" xlink:type="simple" xlink:href="reyn-20260930.xsd#DebtScheduleofLongtermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/DebtScheduleofLongtermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019ff773-d88d-7353-a529-460c78f5cd3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019ff773-d88d-7470-8b6f-d2f86915c531" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019ff773-d88d-7353-a529-460c78f5cd3d" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019ff773-d88d-7470-8b6f-d2f86915c531" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019ff773-d88d-7725-97a8-49a752e5db7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019ff773-d88d-7353-a529-460c78f5cd3d" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019ff773-d88d-7725-97a8-49a752e5db7a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/DebtScheduleofLongtermDebtDetails_1" xlink:type="simple" xlink:href="reyn-20260930.xsd#DebtScheduleofLongtermDebtDetails_1"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/DebtScheduleofLongtermDebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019ff773-d88d-77ee-bcb2-5b4a13d46fe5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019ff773-d88d-7b5e-99a5-1e5ae4ba8bb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019ff773-d88d-77ee-bcb2-5b4a13d46fe5" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019ff773-d88d-7b5e-99a5-1e5ae4ba8bb1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019ff773-d88d-7d54-ab3c-dd97ca5848c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019ff773-d88d-77ee-bcb2-5b4a13d46fe5" xlink:to="loc_us-gaap_LongTermDebtCurrent_019ff773-d88d-7d54-ab3c-dd97ca5848c5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/FinancialInstrumentsScheduleofDerivativebyBalanceSheetGroupingDetails" xlink:type="simple" xlink:href="reyn-20260930.xsd#FinancialInstrumentsScheduleofDerivativebyBalanceSheetGroupingDetails"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/FinancialInstrumentsScheduleofDerivativebyBalanceSheetGroupingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019ff773-d88d-77bf-b567-f097dbf0866e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_019ff773-d88d-777f-95d4-0f27b6a72dc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_019ff773-d88d-77bf-b567-f097dbf0866e" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_019ff773-d88d-777f-95d4-0f27b6a72dc8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_019ff773-d88d-796a-b5b6-fc55174f3ecb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_019ff773-d88d-77bf-b567-f097dbf0866e" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_019ff773-d88d-796a-b5b6-fc55174f3ecb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019ff773-d88d-7213-a4d1-34330e370276" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019ff773-d88d-7dfa-9f9f-31f2e26fb26d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_019ff773-d88d-7213-a4d1-34330e370276" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019ff773-d88d-7dfa-9f9f-31f2e26fb26d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.reynoldsgroupholdings.com/role/SegmentInformationScheduleofReconciliationofTotalSegmentAdjustedEBITDAtoGAAPIncomeBeforeIncomeTaxesDetails" xlink:type="simple" xlink:href="reyn-20260930.xsd#SegmentInformationScheduleofReconciliationofTotalSegmentAdjustedEBITDAtoGAAPIncomeBeforeIncomeTaxesDetails"/>
  <link:calculationLink xlink:role="http://www.reynoldsgroupholdings.com/role/SegmentInformationScheduleofReconciliationofTotalSegmentAdjustedEBITDAtoGAAPIncomeBeforeIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_reyn_AdjustedEBITDAFromContinuingOperations_019ff773-d88d-7038-a48d-f6b952c578d7" xlink:href="reyn-20260930.xsd#reyn_AdjustedEBITDAFromContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_reyn_AdjustedEBITDAFromContinuingOperations_019ff773-d88d-7038-a48d-f6b952c578d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019ff773-d88d-79e5-8e95-34534e23719f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_us-gaap_DepreciationAndAmortization_019ff773-d88d-79e5-8e95-34534e23719f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019ff773-d88d-7f4e-a45a-511a3d5f6659" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019ff773-d88d-7f4e-a45a-511a3d5f6659" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_019ff773-d88d-7060-ba32-7266528cf571" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_019ff773-d88d-7060-ba32-7266528cf571" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_reyn_GainLossOnDebtModification_019ff773-d88d-7714-a93c-535f7ee11764" xlink:href="reyn-20260930.xsd#reyn_GainLossOnDebtModification"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_reyn_GainLossOnDebtModification_019ff773-d88d-7714-a93c-535f7ee11764" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_reyn_CostToExecuteStrategicInitiatives_019ff773-d88d-74a5-8389-6e1cce72e8b8" xlink:href="reyn-20260930.xsd#reyn_CostToExecuteStrategicInitiatives"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_reyn_CostToExecuteStrategicInitiatives_019ff773-d88d-74a5-8389-6e1cce72e8b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_reyn_CEOTransitionCosts_01a13903-31d6-7a73-b427-0dcea97c4d05" xlink:href="reyn-20260930.xsd#reyn_CEOTransitionCosts"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_reyn_CEOTransitionCosts_01a13903-31d6-7a73-b427-0dcea97c4d05" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_01a1778f-952b-7b81-ab6d-850051966ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019ff773-d88d-7df8-918a-77c890f87c18" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_01a1778f-952b-7b81-ab6d-850051966ba8" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
