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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c9727-cb44-7800-a5ab-d1f229599278,g:f59cfc24-ee59-416d-8672-be352f0b47ba-->
<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://honestco.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="hnst-20260331.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://honestco.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c9727-cc18-7057-8d3d-e11d9188d5e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019c9727-cc18-7c8b-a8cb-033706094e13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c9727-cc18-7057-8d3d-e11d9188d5e3" xlink:to="loc_us-gaap_AccountsPayableCurrent_019c9727-cc18-7c8b-a8cb-033706094e13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-72fb-bb2b-551f3fbbf3bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c9727-cc18-7057-8d3d-e11d9188d5e3" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-72fb-bb2b-551f3fbbf3bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019c9727-cc18-7f75-810a-5dfa333bb907" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:to="loc_us-gaap_PreferredStockValue_019c9727-cc18-7f75-810a-5dfa333bb907" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019c9727-cc18-7c2f-8f4f-83861e861b12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:to="loc_us-gaap_CommonStockValue_019c9727-cc18-7c2f-8f4f-83861e861b12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019d5eee-47ef-7971-943a-46ad9390109d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019d5eee-47ef-7971-943a-46ad9390109d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019c9727-cc18-7664-bb93-3cb77534288b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019c9727-cc18-7664-bb93-3cb77534288b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c9727-cc18-7813-9b97-60232682c959" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c9727-cc18-735f-9564-0615a2d66d8c" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c9727-cc18-7813-9b97-60232682c959" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c9727-cc18-736e-a0e7-08781c804682" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c9727-cc18-761e-bfc5-119feefd6136" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-736e-a0e7-08781c804682" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c9727-cc18-761e-bfc5-119feefd6136" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableNetCurrent_019c9727-cc18-7342-8b0d-e68a8acd148f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesAndLoansReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c9727-cc18-736e-a0e7-08781c804682" xlink:to="loc_us-gaap_AccountsNotesAndLoansReceivableNetCurrent_019c9727-cc18-7342-8b0d-e68a8acd148f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019c9727-cc18-7b72-9fdb-1a4b59254f74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c9727-cc18-736e-a0e7-08781c804682" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019c9727-cc18-7b72-9fdb-1a4b59254f74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019c9727-cc18-72e4-a7f9-b853bc0c2d85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-736e-a0e7-08781c804682" xlink:to="loc_us-gaap_InventoryNet_019c9727-cc18-72e4-a7f9-b853bc0c2d85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c9727-cc18-74a4-bfa3-10422b3a0524" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c9727-cc18-7b2c-83f2-0c54dffd82f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-74a4-bfa3-10422b3a0524" xlink:to="loc_us-gaap_LiabilitiesCurrent_019c9727-cc18-7b2c-83f2-0c54dffd82f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c9727-cc18-7b37-a855-d293996f32e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c9727-cc18-74a4-bfa3-10422b3a0524" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c9727-cc18-7b37-a855-d293996f32e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c9727-cc18-73ba-bba8-f3f1cd663618" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c9727-cc18-7a1c-9625-9c1c4f2a6f57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c9727-cc18-73ba-bba8-f3f1cd663618" xlink:to="loc_us-gaap_StockholdersEquity_019c9727-cc18-7a1c-9625-9c1c4f2a6f57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019c9727-cc18-70d0-b5df-06658744a5d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-73ba-bba8-f3f1cd663618" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019c9727-cc18-70d0-b5df-06658744a5d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c9727-cc18-7ae9-9e7d-d78b72958b10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c9727-cc18-73ba-bba8-f3f1cd663618" xlink:to="loc_us-gaap_Liabilities_019c9727-cc18-7ae9-9e7d-d78b72958b10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c9727-cc18-7c33-b442-e12f2e7889e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_AssetsCurrent_019c9727-cc18-7c33-b442-e12f2e7889e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019c9727-cc18-73e8-95cd-261e8da1c486" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019c9727-cc18-73e8-95cd-261e8da1c486" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c9727-cc18-7264-9578-8b1b6b015ad8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_Goodwill_019c9727-cc18-7264-9578-8b1b6b015ad8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c9727-cc18-7085-830d-65a8e5fc2c8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c9727-cc18-7085-830d-65a8e5fc2c8a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019c9727-cc18-7543-a83a-7e94a2668db7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019c9727-cc18-7543-a83a-7e94a2668db7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c9727-cc18-7058-86d3-4a8b83747c78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c9727-cc18-7aca-a93a-9265845d66b0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c9727-cc18-7058-86d3-4a8b83747c78" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeLoss" xlink:type="simple" xlink:href="hnst-20260331.xsd#CondensedConsolidatedStatementsofComprehensiveIncomeLoss"/>
  <link:calculationLink xlink:role="http://honestco.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeLoss" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c9727-cc18-705c-9776-8edb152d1da3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019c9727-cc18-7ea6-b929-45525f354abc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c9727-cc18-705c-9776-8edb152d1da3" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019c9727-cc18-7ea6-b929-45525f354abc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c9727-cc18-749a-8586-91c345d3c8e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c9727-cc18-705c-9776-8edb152d1da3" xlink:to="loc_us-gaap_OperatingIncomeLoss_019c9727-cc18-749a-8586-91c345d3c8e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019c9727-cc18-7240-b91e-f764b1c4f4b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c9727-cc18-7001-af25-b09c50be3e0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7240-b91e-f764b1c4f4b6" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c9727-cc18-7001-af25-b09c50be3e0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019c9727-cc18-741b-bfeb-53252ab92bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019c9727-cc18-7240-b91e-f764b1c4f4b6" xlink:to="loc_us-gaap_CostOfRevenue_019c9727-cc18-741b-bfeb-53252ab92bbb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c9727-cc18-749e-bf8a-e3dc55a0b6ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c9727-cc18-79b6-a01d-a0934eaf8041" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-749e-bf8a-e3dc55a0b6ff" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c9727-cc18-79b6-a01d-a0934eaf8041" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c9727-cc18-7358-aa82-ca37b63f3fb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-749e-bf8a-e3dc55a0b6ff" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c9727-cc18-7358-aa82-ca37b63f3fb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019c9727-cc18-76f7-9bbf-d9ff5fa612f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019c9727-cc18-7293-917f-acc496d23e46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_OperatingIncomeLoss_019c9727-cc18-76f7-9bbf-d9ff5fa612f1" xlink:to="loc_us-gaap_GrossProfit_019c9727-cc18-7293-917f-acc496d23e46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019c9727-cc18-7397-ab4a-24ae31473e6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019c9727-cc18-76f7-9bbf-d9ff5fa612f1" xlink:to="loc_us-gaap_OperatingExpenses_019c9727-cc18-7397-ab4a-24ae31473e6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019c9727-cc18-7661-a931-f77cf43f1589" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingExpense_019c9727-cc18-7132-afc6-53587244e94c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MarketingExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019c9727-cc18-7661-a931-f77cf43f1589" xlink:to="loc_us-gaap_MarketingExpense_019c9727-cc18-7132-afc6-53587244e94c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019c9727-cc18-7f1c-ab57-00430f5c5c7d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_OperatingExpenses_019c9727-cc18-7661-a931-f77cf43f1589" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019c9727-cc18-7f1c-ab57-00430f5c5c7d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019c9727-cc18-77d6-969a-3455ad1a68d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019c9727-cc18-7661-a931-f77cf43f1589" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019c9727-cc18-77d6-969a-3455ad1a68d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019d9757-e761-7ca1-aec9-5566756ce3ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019c9727-cc18-7661-a931-f77cf43f1589" xlink:to="loc_us-gaap_RestructuringCharges_019d9757-e761-7ca1-aec9-5566756ce3ad" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="hnst-20260331.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://honestco.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c9727-cc18-7c84-92a6-a6348609b410" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-791c-bfea-f73c8ba192f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7c84-92a6-a6348609b410" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-791c-bfea-f73c8ba192f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c9727-cc18-77b0-beb8-0314ed831dfc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7c84-92a6-a6348609b410" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c9727-cc18-77b0-beb8-0314ed831dfc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-72e7-8782-d85a7ecf4358" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-7c84-92a6-a6348609b410" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-72e7-8782-d85a7ecf4358" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c9727-cc18-755a-b768-c8c931a43475" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c9727-cc18-7d26-a444-de15c72efd6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_019c9727-cc18-755a-b768-c8c931a43475" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c9727-cc18-7d26-a444-de15c72efd6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-7c49-8a9b-04222c9fd847" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_019c9727-cc18-7b1b-9a7f-23991dcd574a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-7c49-8a9b-04222c9fd847" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_019c9727-cc18-7b1b-9a7f-23991dcd574a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_019c9727-cc18-789c-b48a-f349cf7770c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-7c49-8a9b-04222c9fd847" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_019c9727-cc18-789c-b48a-f349cf7770c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019d975b-3030-7bcb-bcfc-3a54349c137f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c9727-cc18-7c49-8a9b-04222c9fd847" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019d975b-3030-7bcb-bcfc-3a54349c137f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019c9727-cc18-7886-afa5-0a48b8e08f4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019c9727-cc18-7886-afa5-0a48b8e08f4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019c9727-cc18-748c-9a5d-edc48db13987" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019c9727-cc18-748c-9a5d-edc48db13987" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_hnst_IncreaseDecreaseInAccountsPayableAccruedLiabilitiesAndOtherLongTermLiabilities_019c9727-cc18-7362-a5b1-9f634b6ddc1d" xlink:href="hnst-20260331.xsd#hnst_IncreaseDecreaseInAccountsPayableAccruedLiabilitiesAndOtherLongTermLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_hnst_IncreaseDecreaseInAccountsPayableAccruedLiabilitiesAndOtherLongTermLiabilities_019c9727-cc18-7362-a5b1-9f634b6ddc1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c9727-cc18-736e-bbbb-23c1b4525176" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_NetIncomeLoss_019c9727-cc18-736e-bbbb-23c1b4525176" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019c9727-cc18-7330-82f5-92de3e2655b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_ShareBasedCompensation_019c9727-cc18-7330-82f5-92de3e2655b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019c9727-cc18-7783-8ef1-3d43c94e9adb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019c9727-cc18-7783-8ef1-3d43c94e9adb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019c9727-cc18-7f78-8595-a19f293f2957" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019c9727-cc18-7f78-8595-a19f293f2957" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019c9727-cc18-78d9-a997-7ef98eaf5483" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019c9727-cc18-78d9-a997-7ef98eaf5483" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_019c9727-cc18-7720-a19c-66e45b7ae9f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_019c9727-cc18-7720-a19c-66e45b7ae9f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019c9727-cc18-7b38-b1c4-735ce570aa58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019c9727-cc18-7b38-b1c4-735ce570aa58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_019c9727-cc18-77b7-ae1b-7e0133bb6a6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c9727-cc18-7b39-91c5-c8ecaf571db2" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_019c9727-cc18-77b7-ae1b-7e0133bb6a6f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/AccruedExpensesDetails" xlink:type="simple" xlink:href="hnst-20260331.xsd#AccruedExpensesDetails"/>
  <link:calculationLink xlink:role="http://honestco.com/role/AccruedExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalariesCurrent_019c9727-cc18-71aa-b796-389d5865b602" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedSalariesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_us-gaap_AccruedSalariesCurrent_019c9727-cc18-71aa-b796-389d5865b602" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_hnst_AccruedInventoryPurchases_019c9727-cc18-7244-bf0f-09097459e4cc" xlink:href="hnst-20260331.xsd#hnst_AccruedInventoryPurchases"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_hnst_AccruedInventoryPurchases_019c9727-cc18-7244-bf0f-09097459e4cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedMarketingCostsCurrent_019c9727-cc18-7ea7-867a-d6feddc459c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedMarketingCostsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_us-gaap_AccruedMarketingCostsCurrent_019c9727-cc18-7ea7-867a-d6feddc459c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c9727-cc18-753b-bd33-0ca808fd79f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c9727-cc18-753b-bd33-0ca808fd79f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_019c9727-cc18-75d4-9be3-091e3c5bcd2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_us-gaap_RestructuringReserveCurrent_019c9727-cc18-75d4-9be3-091e3c5bcd2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019d0728-eff5-7357-8976-c8393ad56231" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_019c9727-cc18-7040-86ac-325f4ea91cd6" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019d0728-eff5-7357-8976-c8393ad56231" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/NetIncomeLossperShareAttributabletoCommonStockholdersScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="simple" xlink:href="hnst-20260331.xsd#NetIncomeLossperShareAttributabletoCommonStockholdersScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails"/>
  <link:calculationLink xlink:role="http://honestco.com/role/NetIncomeLossperShareAttributabletoCommonStockholdersScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c9727-ccea-7931-b3d8-2553acc3d3ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019c9727-ccea-7b8f-a89f-c787485eccf7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c9727-ccea-7931-b3d8-2553acc3d3ab" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019c9727-ccea-7b8f-a89f-c787485eccf7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019c9727-ccea-71b2-bc0f-24a9b319cfa2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c9727-ccea-7931-b3d8-2553acc3d3ab" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019c9727-ccea-71b2-bc0f-24a9b319cfa2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/LeasesScheduleofComponentsofLeaseExpenseDetails" xlink:type="simple" xlink:href="hnst-20260331.xsd#LeasesScheduleofComponentsofLeaseExpenseDetails"/>
  <link:calculationLink xlink:role="http://honestco.com/role/LeasesScheduleofComponentsofLeaseExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019c9727-ccea-7327-8eb8-36b7fb56ccbe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_019c9727-ccea-7c79-80cc-8097369d76ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubleaseIncome"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019c9727-ccea-7327-8eb8-36b7fb56ccbe" xlink:to="loc_us-gaap_SubleaseIncome_019c9727-ccea-7c79-80cc-8097369d76ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019c9727-ccea-743b-8138-7f29bc6fe8d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019c9727-ccea-7327-8eb8-36b7fb56ccbe" xlink:to="loc_us-gaap_OperatingLeaseCost_019c9727-ccea-743b-8138-7f29bc6fe8d5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://honestco.com/role/LeasesScheduleofAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="hnst-20260331.xsd#LeasesScheduleofAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://honestco.com/role/LeasesScheduleofAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_hnst_LeaseRightOfUseAsset_019c9727-ccea-7c24-ab17-5aebd3bd0862" xlink:href="hnst-20260331.xsd#hnst_LeaseRightOfUseAsset"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c9727-ccea-7d61-811d-b221f493537e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_hnst_LeaseRightOfUseAsset_019c9727-ccea-7c24-ab17-5aebd3bd0862" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c9727-ccea-7d61-811d-b221f493537e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_hnst_LeaseLiability_019c9727-ccea-7560-b7bc-21abe3e0910f" xlink:href="hnst-20260331.xsd#hnst_LeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c9727-ccea-7b38-ab98-43361a6619b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_hnst_LeaseLiability_019c9727-ccea-7560-b7bc-21abe3e0910f" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c9727-ccea-7b38-ab98-43361a6619b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c9727-ccea-758d-9a1b-58d6d2361aae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_hnst_LeaseLiability_019c9727-ccea-7560-b7bc-21abe3e0910f" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c9727-ccea-758d-9a1b-58d6d2361aae" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
