Amazon FBA Profitability Calculator
Enter your product cost, Amazon fees, PPC spend, and return rate — get true net margin, ROI on inventory, break-even sale price, and a side-by-side FBA vs FBM comparison.
Net Profit / Unit
$11.29
Net Margin
0.4%
ROI on Inventory
1.7%
Monthly Profit
$1,693.92
Recommendation
FBM — FBM saves $3.45 per unit — viable if you can self-fulfill reliably
Product & FBA Inputs
FBM Comparison Inputs
FBA vs FBM — Unit Economics
| Line Item | FBA | FBM |
|---|---|---|
| Sale Price | $29.99 | $29.99 |
| COGS | ($6.00) | ($6.00) |
| Referral Fee | ($4.50) | N/A |
| FBA / Outbound Shipping | ($3.22) | ($5.50) |
| Inbound Shipping | ($0.75) | — |
| Storage / Packaging | ($0.30) | ($0.75) |
| PPC / Labor | ($3.00) | ($3.00) |
| Returns | ($0.93) | — |
| Net Profit | $11.29 | $14.74 |
| Net Margin | 0.4% | 0.5% |
| ROI | 1.7% | 2.5% |
Monthly P&L (150 units)
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