Amazon FBA Profit & Fee Calculator
Enter your price, product cost, and Amazon fees to see net profit per unit, profit margin, and ROI in real time. Use it to sanity-check a product before you commit to an order, or to find the price that protects your margin.
Your results
Enter a sale price to see your profit, margin, and ROI.
From price to real profit
The price a customer pays is not what you keep. Amazon takes a referral fee, which is a percentage of the sale price and sits around 15 percent in most categories, plus an FBA fulfilment fee, a flat charge for picking, packing, and shipping the unit. On top of that you carry your own product cost and any inbound freight or prep.
To use the calculator, enter the sale price and your unit cost, confirm the referral percentage for your category, and add the FBA fee from the Amazon fee preview on your listing. If you pay for prep or freight per unit, put that in the optional field. The results panel updates as you type.
Net profit is what remains after every cost. Margin shows that profit as a share of the sale price, and ROI shows it against the cash you tie up per unit, which is the number that tells you how hard your money is working. If margin or ROI looks thin, test a higher price or a lower landed cost before you order stock.
FBA calculator FAQ
How is Amazon FBA profit calculated?
Start with your sale price, then subtract the referral fee (a percentage of the price, usually 15 percent), the FBA fulfilment fee (a flat amount based on size and weight), your unit cost, and any shipping or prep cost per unit. What is left is your net profit per unit. This calculator does that math live as you type.
What is a good profit margin and ROI for FBA?
Many sellers aim for a net margin of 15 to 30 percent and an ROI of 50 percent or more per unit, so the cash you tie up in stock comes back with room to reinvest. Lower margins can still work at high volume, but they leave little buffer for ad spend, returns, and fee changes.
Does this include Amazon storage fees?
It covers the per-unit referral and FBA fulfilment fees, which are the largest costs on most orders. Monthly storage fees, long-term storage fees, and PPC are charged separately, so factor those in when you plan your overall budget. Use the shipping or other cost field to fold in prep and inbound freight.
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