Free Amazon FBA Calculator - Fees, Profit & ROI
Calculate your profit margin and net profit after all costs and Amazon FBA fees
Profitability summary
Non-peak rates
Net profit per unit
$10.85
43.4% margin
Break-even price
Sell at $12.22 or higher to break even.
Keep TACoS under 43.4% to stay profitable.
- ROI
- 180.8%
P&L breakdown
AmountShare- Landed cost$6.0024.0%
- Referral$3.7515.0%
- Fulfillment, including fuel$4.3517.4%
- Storage$0.040.2%
- Profit$10.8543.4%
Large standard-size. Amazon bills 0.69 lb. Storage is one month at the rate for this size.
Storage is taking $0.04 of the $10.85 profit.
Four steps
How to use
Price and category set the referral fee. Costs are yours. Size is optional.
01
Enter the price and main category
Choose the category so we can calculate Amazon’s referral fee.
02
Add your costs
Enter your product cost, inbound shipping, duties, and whether you use FBA or manage orders yourself.
03
Add size if applicable
If you know the dimensions, weight, and expected monthly sales, add them for a more accurate FBA estimate.
04
Selling in Q4 and peak season?
Turn on 2026 peak fees to see how holiday fulfillment and storage affect your margin.
Profit = price − unit cost − referral − fulfillment − storage
Worked example
A $24.99 product, product cost $6.00, Default category, 8 × 6 × 2 in, 0.5 lb. Storage in this example is one month.
- Landed cost$6.0024.0%
- Referral$3.7515.0%
- Fulfillment, including fuel$4.3517.4%
- Storage$0.040.2%
- Profit$10.8543.4%
The referral percent depends on the category. The size tier depends on the dimensions and the weight.
Rate card checked 28 Sep 2026. It includes category referral, fulfillment by size tier, billed weight, and price band, the 3.5% fuel surcharge, and monthly storage. Peak fulfillment rates run 15 Oct 2026–14 Jan 2027. The peak switch also uses October–December storage. These are standard non-apparel US rates.
Frequently asked questions
This margin assumes the listing converts. Paste the listing to see what else is costing sales.