Margin SellerProfit research for marketplace sellers

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Profit calculators for Amazon and Walmart sellers

Focused tools and explainers for estimating Amazon and Walmart product economics before you source.

Open the profit calculator Add to Chrome

How to use these resources

Choose the calculator that matches the listing

Start with the marketplace and fulfillment method you plan to use. Each estimate describes one listing under the inputs you provide; for a cross-marketplace comparison, keep shared sourcing costs consistent and marketplace-specific assumptions separate.

  1. 01

    Amazon FBA listing

    Use this when the product will be fulfilled through FBA. Check the category, packaged dimensions, shipping weight, storage period, and supplier-pack basis.

    Open the Amazon FBA profit calculatorReview Amazon seller fee inputs
  2. 02

    Walmart WFS listing

    Use this when WFS matches your planned operation. Verify eligibility, category, current product measurements, and the fulfillment assumptions.

    Open the Walmart WFS calculator
  3. 03

    Compare marketplace outcomes

    Use separate listings and marketplace-specific inputs, then compare the estimated unit economics on the same physical-product basis.

    Compare Amazon and Walmart margins

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Seller resources

11 resources
Amazon FBA profit calculatorAmazon FBA Profit Calculator for Sellers | Margin SellerEstimate Amazon FBA profit, margin, ROI, break-even price, and maximum buy price using listing details, supplier cost, and your operating assumptions.Walmart WFS profit calculatorWalmart WFS Profit Calculator for Sellers | Margin SellerEstimate Walmart WFS profit, margin, ROI, break-even price, and maximum buy cost from listing data and your costs. Compare a lower-price case before sourcing.Walmart seller fee calculator for referral and WFS feesWalmart Seller Fee Calculator for WFS Fees | Margin SellerEstimate Walmart referral and WFS fees with editable assumptions. Check category matches, see when manual entry is needed, and separate fees from profit.Amazon and Walmart profit margin calculatorAmazon and Walmart Margin Calculator | Margin SellerCompare Amazon and Walmart product economics—profit, margin, ROI, break-even price, and Buy/Review/Avoid signals. Use matching costs to screen a listing.Amazon seller fee calculator for FBA and FBMAmazon Seller Fees Calculator for FBA & FBM | Margin SellerEstimate Amazon referral, fulfillment, and per-unit selling-plan costs using your own assumptions. See what the audit includes and what to verify before buying.Amazon FBA vs FBM profit calculatorAmazon FBA vs FBM Profit Calculator (Free) | Margin SellerFree Amazon FBA vs FBM profit calculator. Enter price, cost, size, and shipping to compare profit, margin, and ROI for both methods. No sign-in needed.Reverse wholesale cost and target ROI calculatorReverse Wholesale Cost & Target ROI Calculator | Margin SellerFree reverse sourcing calculator: enter your selling price and target ROI to find the maximum wholesale cost per unit you can pay. No sign-in needed.Amazon FBA fees for clothing and apparelAmazon FBA Fees for Clothing: Free Profit Calculator | Margin SellerEstimate Amazon FBA fees and profit for clothing and apparel. Enter price, cost, weight, and size to see fulfillment fee, profit, and ROI. No sign-in needed.Walmart WFS fulfillment fees for electronicsWalmart WFS Fulfillment Fees for Electronics Calculator | Margin SellerEstimate Walmart WFS fulfillment fees and profit for electronics. Enter price, cost, weight, and size to see the fee tier, profit, and ROI. No sign-in needed.Amazon FBA referral fee percentage for electronicsAmazon FBA Referral Fee Percentage for Electronics | Margin SellerCheck the Amazon FBA referral fee percentage for electronics and see its dollar cost. Free calculator shows referral fee, FBA fee, profit, and ROI per unit.Walmart WFS storage fee calculatorWalmart WFS Storage Fee Calculator | Margin SellerFree Walmart WFS storage fee calculator. Enter size, units, months in storage, and rate to see storage cost per unit, total cost, and profit after storage.

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