Amazon FBA Profit & Margin Calculator
See your real net profit per unit after Amazon's 15% referral fee (min $0.30), FBA and storage - before you order stock that sells at a loss.
| Amazon referral fee | — | $ |
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| Fulfillment cost | — | $ |
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| Total Amazon fees | — | $ |
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| Total cost per unit | — | $ |
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| Net profit per unit | — | $ |
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| Profit margin | — | % |
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| Return on investment (ROI) | — | % |
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| Break-even sale price | — | $ |
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| Break-even ACoS | — | % |
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| Profit at 100 units/month | — | $ |
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Toolbar profit calculator
Open the FBA profit calculator from your browser toolbar on any Amazon tab, with no site to visit.
Saved seller defaults
Store your usual COGS, category, FBA fee and PPC once so every new product needs only price and cost.
Built-in referral-fee table
27 Amazon category referral rates and the $0.30 minimum are built in, so you never look them up.
Break-even price & ACoS
See the lowest sale price you can accept and your break-even ad spend before you order stock.
Copy fee breakdown
Copy the full net-profit breakdown to paste into your sourcing sheet.
Works offline
All maths runs locally; no account, no login, and no data leaves your machine.