Free Amazon FBA Calculator
Enter your selling price, product cost, inbound shipping, and unit weight. We use Amazon's 2024 US Standard-size FBA fee table to break out referral fee, fulfillment fee, total cost, and your real net profit.
Three steps.
Zero friction.
- 01
Enter the selling price you plan to list at.
- 02
Enter product cost (COGS) per unit and inbound shipping cost per unit.
- 03
Enter unit weight in ounces and pick your category referral rate.
Why FBA looks profitable until you do the math
New Amazon sellers routinely list a $24.99 product, see a $4 wholesale cost, and assume $20 profit. The reality after FBA is closer to $11 — referral fee, FBA fulfillment fee, inbound shipping, and (often forgotten) storage fees pull a third to half of the sale price into Amazon's pocket. Add PPC and that profit halves again.
The 2024 FBA fulfillment fee for a Small Standard item under 16oz starts at $3.06 and climbs with weight. Large Standard (over 1lb) starts at $4.41 and adds $0.16 for every 4oz over 48oz. Oversize items are billed under a separate schedule entirely.
This calculator uses Amazon's published Standard-size rates. For Oversize, Apparel with size surcharges, or seasonal Q4 peak fees, layer those in manually. Aim for at least 25% net margin pre-PPC — anything under that and your ad budget eats the business.
Frequently asked questions
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