Amazon FBA profit & margin calculator.

Know your true unit economics before you launch or restock. See net profit, margin, and ROI after every Amazon fee.

No login, no email, no signup — calculations run entirely in your browser.

Net profit per unit after all Amazon fees
Net margin % on sale price
Return on cost (ROI) %
Total Amazon fees per unit

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FAQ

How quickly can results appear? Technical indexing changes can be visible within days, while non-branded organic growth typically requires several weeks of execution and iteration.