Calculate true FBA profit per unit, fees, break-even, and FBA vs FBM comparison
What is this? Amazon FBA fees are complex and often surprising. Referral fees (15%), fulfillment fees ($3.22-$6.50+ per unit), storage fees ($0.78-$2.40/cu ft/mo), plus closing fees, returns, and PPC ads can make a "profitable" $29 product actually lose money. This calculator shows the complete picture — every fee, every cost — so you know before you list.
Who it's for: Amazon FBA sellers, private label entrepreneurs, and resellers evaluating whether a product will actually make money on Amazon.
Product & Pricing
Your Costs
2026 FBA fee changes: Fulfillment fees increased ~3-5%. Standard size starts at $3.22/unit, large standard $4.75+. Peak season storage (Oct-Dec) is $2.40/cu ft/mo vs $0.78 in off-season.
Per-Unit Economics
Revenue
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Total FBA Fees
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all Amazon fees
Product + Shipping
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Gross Profit / Unit
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after all fees
Net Margin
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Amazon ROI
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profit / cost basis
Where Your $29.99 Goes
Max fees shown:
Monthly P&L at 200 Units
Gross Sales
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Total Costs
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Net Profit
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Break-Even Units/Mo
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Annual Profit
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Profit Per Day
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FBA vs. FBM (Fulfilled by Merchant) Comparison
Metric
FBA
FBM
FBA pros: Prime eligibility, higher conversion, handled shipping & returns. FBM pros: No storage fees, full control, no FBA penalties. Many sellers use both.
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Fee estimates based on 2026 Amazon fee schedule. Actual fees vary by product size tier, weight, and special categories. Does not include long-term storage fees, subscription costs, or advertising beyond PPC.