Free Amazon Profit Margin Calculator
Plug in price, COGS, FBA fee, referral %, and average PPC spend per unit. We surface true margin per unit and projected monthly profit.
Three steps.
Zero friction.
- 01
Enter your selling price and unit cost (COGS landed in your warehouse).
- 02
Add the FBA fulfillment fee (use our FBA calculator if unknown) and category referral % (8-15%).
- 03
Add average PPC spend per unit and units sold per month for a monthly profit estimate.
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The four numbers that decide whether your Amazon product survives
Most Amazon sellers know their COGS and referral fee, but underestimate FBA fulfillment and PPC spend per unit. Both compound: as you raise rank with ads, PPC eats your margin until organic sales catch up.
A healthy private-label product nets 20-30% margin after all four costs. Below 15% per unit you can't afford ads, returns, or a reorder cycle. This calculator runs the math so you can pressure-test pricing before launch — or decide whether to raise price now.