Amazon FBA Profit Calculator
Edit the values for your product; net profit, margin, ROI and break-even ACOS update instantly.
Amazon.com US / USD example scenario. Starting values are not an official fee quote; enter the current values for your own product.
Net profit per unit
$10.09
Profit margin
33.6%
ROI
134.6%
This is an estimate and does not fetch Amazon fee tables automatically. Actual fees vary by size, weight, category, inventory age, and services used; compare against Amazon Revenue Calculator and Seller Central Fee Preview.
How FBA profit is calculated
Net profit = sale price − referral fee − FBA fulfillment − monthly storage − product cost − inbound shipping − other per-unit costs − ad cost. Break-even ACOS is your pre-ad profit as a share of price — the highest ad cost ratio you can bear before the product loses money.
The practical threshold we use on our own brands: product cost + inbound shipping under 30% of the sale price. See the fee lines in detail in the FBA costs article.
Sources, scope, and freshness
Sources last reviewed August 1, 2026. This is a manual scenario calculator for the Amazon.com US store in USD. The default 15% referral fee and other starting values are examples only; Amazon referral fees vary by category and total sales price, while FBA fees vary by dimensions, weight, and services used.
Monthly selling plan, returns, aged inventory, inbound placement, removal or disposal, tax, and customs costs are not calculated automatically. Where applicable, add their per-unit allocation under “Other costs.”
- Amazon selling plans and category referral fees
- Amazon FBA cost scope
- Amazon Revenue Calculator
- Amazon's 2026 US fee update
Amazon stated that 2026 FBA fees increased by an average of $0.08 per unit and that changes generally took effect January 15, 2026 unless otherwise noted. Use the official calculator for product-specific decisions.
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