Amazon FBA profit calculator
Price the product. Stress the margin. Fix the math before launch.
Real-time estimates for referral fees, FBA fulfillment costs, profit per unit, margin, ROI, and your break-even threshold.
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Input assumptions
Unit economics
Common default for household goods, kitchen tools, and many private-label products.
Size profile
Weight and dimensions
Fee logic
Shipping weight used
2.06 lb
Dimensional weight
2.06 lb
Large standard-size uses the higher of unit weight or dimensional weight for shipping weight.
Live results
Profit snapshot
Net profit per unit
$7.56
Referral fee
$4.50
Estimated FBA fee
$6.08
Total Amazon fees
$10.58
Profit margin
25.2%
ROI
63.8%
Net payout after Amazon
$19.41
Visual breakdown
Where each sales dollar goes
Based on $29.99 revenue
Break-even analysis
Launch guardrails
Watch how thin margins get when fees and ads start compounding.
Break-even sale price
$21.09
Minimum price needed to cover Amazon fees, COGS, inbound shipping, and current ad spend.
Max ad spend per unit
$9.81
The most you can spend on ads at this price before profit drops to zero.
Break-even ACOS
32.7%
Useful ceiling for PPC planning when you are pricing new launches.