Amazon FBA Profit Calculator
Enter your selling price, cost of goods, ad spend, and product size to instantly see your Amazon FBA net profit, margin, ROI, and the minimum price you need to cover all fees. The fee breakdown table shows exactly where each dollar goes — referral fee, fulfillment fee, COGS, and advertising — so you can spot margin leaks before they compound across your catalog.
Net profit / unit
Profitable$9.75
Margin
39.00%
net ÷ price
ROI on COGS
162.50%
net ÷ COGS
Break-even price
$13.53
Minimum price to cover all fees with zero profit
Cost components
Full fee breakdown
| Item | Amount | % of price |
|---|---|---|
| Selling price | $25.00 | 100.00% |
| Referral fee (15%) | −$3.75 | 15.00% |
| FBA fulfillment fee | −$5.50 | 22.00% |
| COGS | −$6.00 | 24.00% |
| Net profit | $9.75 | 39.00% |
How it works
Amazon charges two main per-unit fees before profit: a referral fee (a percentage of the selling price, typically 15% for most categories) and an FBA fulfillment fee (a flat dollar amount based on size and weight tier). These stack on top of your cost of goods and any per-unit advertising spend. Net profit is simply the selling price minus all four of those deductions, and margin is that net divided by the selling price. Mixing up margin and markup — or forgetting that the referral fee is calculated on the full price including shipping — are the most common errors sellers make when estimating profitability.
The break-even price is the minimum selling price at which you recover all variable costs with zero profit. It is calculated as (COGS + FBA fee + ad cost) divided by (1 minus the referral rate). Because the referral fee is proportional to price, the break-even is not just a simple cost sum — you must solve for the price that causes the referral fee itself to absorb exactly the remaining margin. Listing below this price means you lose money on every unit regardless of volume.
ROI here is net profit divided by COGS, expressed as a percentage. It answers the capital-efficiency question: for every dollar you put into inventory, how many dollars of profit come back? A 100% ROI means you double your money; below 0% means you're destroying capital. Healthy Amazon ROIs typically run 30–100%+ depending on category, velocity, and how efficiently you reinvest. Note: this calculator uses static 2025 fee estimates — verify the current Amazon fee schedule in Seller Central before making purchasing or pricing decisions.
Frequently asked questions
Are these FBA fees accurate for my product?+
The fees shown are 2025 estimates based on Amazon's published size-tier schedule for standard items. Actual fees depend on exact dimensions, shipping weight, and product category — some categories (like media, BMVD, or hazmat) use different rates. Always verify using the FBA Revenue Calculator in Seller Central with your specific ASIN before committing to a price or purchase order. This calculator is designed for quick scenario modeling, not as a substitute for Seller Central's official estimate.
Why is my break-even price higher than just COGS plus fees?+
Because the referral fee is charged as a percentage of the selling price, not a flat fee. This creates a circular dependency: a higher selling price means a higher referral fee, which means you need an even higher price to break even. The break-even formula accounts for this by solving algebraically: break-even price = (COGS + FBA fee + ad cost) ÷ (1 − referral rate). If you simply add fees to COGS without this adjustment, you will underprice and lose money on every unit.
What referral rate should I use?+
The most common Amazon referral rate is 15%, which applies to a large share of categories including home, sports, tools, beauty, and grocery. Notable exceptions include electronics accessories (8%), personal computers (6%), and some categories with price tiers (e.g., clothing starts at 17%). Check the Amazon Referral Fee Schedule in Seller Central for your exact category. If you're unsure, 15% is a reasonable conservative default for most product types.