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Amazon FBA Fee & Margin Calculator — Free Online Calculator & Guide

Calculate Amazon FBA fees, net profit, ROI, and margin for any product. Includes referral fees (8-20%), weight-based fulfillment fees, monthly storage.

✓ Formula verified: May 2026

Amazon FBA

Results below

Enter Values

$
$
lbs
Net Profit per Unit
$12.91

Net Margin

▲ 43.1%

ROI on Cost

▲ 172.2%

Referral Fee (15%)

▼ $4.50

FBA Fulfillment Fee

▼ $4.18

Est. Monthly Storage Fee

▼ $0.90/mo

What if your amazon selling price changes? $26.991 → $10.36 · $29.99 → $12.91 · $32.989 → $15.46

Scenario Comparison

Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Etsy Fee Calculator — Listing,Payment FeesSaaS LTV:CAC
Amazon FBA Fee Breakdown
Net Profit per Unit
$12.91
Margin: 43.1%ROI: 172.2%

Fee Breakdown (%, of selling price)

32%25%43%$29.99
Referral
$4.50
General / Standard
FBA Fee
$4.18
1.2 lbs
Storage
$0.90/mo
Monthly
Total Amazon Fees$9.58
Fees as % of price: 31.9%
Dimensional Tier
Large Standard
1.2 lbs
Q4 Storage
3x Penalty
Oct-Dec rates triple
Amazon Fees
Product Cost
Your Profit

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Net Profit per Unit: $12.91

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Related Guides (2)

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