How to use a seller profit calculator
Start with the amount the customer pays. Add the product cost, your delivery cost and any costs of preparing or promoting the item. Select the category and VAT settings that match your account, then review the fee breakdown rather than relying on the profit number alone.
Before buying stock, try a lower selling price and a higher cost estimate. A product that only makes a profit under one optimistic scenario may leave little room for advertising, returns or price changes.
Are these calculators free?
Yes. You can use all three tools without creating an account. Calculations run in your browser.
Will the estimate match every marketplace statement?
Fees can depend on subcategories, discounts, fulfilment programmes and account settings. The tools show their assumptions and provide adjustments for account-specific rates. Always compare an estimate with the official marketplace tools before committing to stock.