Amazon FBA Profit & ROI Calculator

Amazon's 15% referral fee plus FBA and storage charges quietly eat your margin — enter your real costs and see true net profit, ROI and break-even before you commit inventory cash.

Amazon referral fee (per unit)—$
Total Amazon fees (per unit)—$
All-in cost (per unit)—$
Net profit (per unit)—$
Net margin—%
Return on investment (ROI)—%
Amazon's cut of your sale—%
Break-even list price—$
Projected monthly profit—$
FBA Profit, Margin & ROI Calculator
Enter your list price and every cost — supplier cost, freight, FBA fee, storage, ads and returns — and see net profit per unit, margin, ROI and Amazon's total cut on one screen.
Amazon Referral-Fee Category Presets
Pick from 22 Amazon categories and the tool applies that category's published referral rate (8% electronics, 15% most, 17% clothing, 20% jewelry, 45% device accessories); some categories vary by price tier.
Break-even Price Finder
Shows the lowest list price that still covers all fees and costs, so you know how far a price war can go before the product starts losing money.
Save & Compare Product Candidates
Store each product you research on your own device (chrome.storage) and compare their net profit and ROI side by side — no account, no upload, no internet.
Monthly Profit Projection
Multiply net profit per unit by your expected monthly sales to see projected monthly profit before you commit inventory cash.

Get the full version $60

The Chrome extension you install in your toolbar and run offline while browsing Amazon, plus Save & Compare: it keeps every product candidate on your device and ranks them by net profit and ROI. The free page answers one product at a time and saves nothing; the extension is the persistent, side-by-s

One payment, one licence key for this tool. The key is shown right after payment.

Helium 10 and Jungle Scout charge $39–$99 a month for the same FBA fee-and-profit math — this is a one-time $60 you own and run offline, with no login.

Buy the full version — $60
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