Amazon FBA Profit Calculator
Calculate your Amazon FBA profit margins including referral fees, fulfillment costs, and storage fees. Optimize your Amazon pricing strategy.
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How Amazon FBA Fees Work in 2026
Amazon FBA (Fulfillment by Amazon) lets you store products in Amazon's warehouses while they handle shipping, returns, and customer service. But the fees add up quickly. Our free Amazon FBA calculator helps you understand exactly what you'll pay.
Amazon FBA Fee Breakdown
- Referral Fee: 8-45% of sale price depending on category (most categories: 15%)
- FBA Fulfillment Fee: $3.22+ per unit for standard size, based on weight and dimensions
- Monthly Storage: $0.87/cu ft (Jan-Sep), $2.40/cu ft (Oct-Dec peak season)
- Aged Inventory Surcharge: Extra fees for items stored 181+ days
- Seller Account: $39.99/month (Professional) or $0.99/item (Individual)
Tips for Amazon FBA Sellers
- Target 30%+ gross margin after all Amazon fees — below 20% is risky
- Avoid oversized items — FBA fees jump dramatically for products over 18" or 20 lbs
- Monitor storage fees — aged inventory surcharges can eat your margins during slow seasons
- Compare FBA vs FBM (Fulfillment by Merchant) — FBM saves fees but you lose Prime badge
- Use Amazon's Revenue Calculator alongside ours to cross-verify numbers
How to Calculate Profit Margin
Follow these simple steps to understand your e-commerce profitability
Enter Your Costs
Input your product cost, shipping, and advertising expenses
Set Selling Price
Enter your selling price or let us suggest one based on target margin
View Results
See your profit margin, markup, and ROI instantly
Optimize Pricing
Adjust your pricing strategy based on industry benchmarks
Pro Tip
Pro tip: Amazon referral fees vary from 8% (electronics) to 45% (Amazon device accessories). Always check your category rate.
Understanding the Formulas
Profit Margin Formula
Margin = (Price - Cost) / Price × 100%
Example: $25 price - $15 cost = 40% margin
Markup Formula
Markup = (Price - Cost) / Cost × 100%
Example: $25 price - $15 cost = 66.7% markup
Calculator Features
Everything you need to optimize your e-commerce pricing
Multi-Platform Support
Pre-configured fees for Amazon, Shopify, eBay, and more
Multi-Currency
Calculate in USD, EUR, GBP, CNY, and JPY
Instant Results
Real-time calculations as you type
Privacy First
All calculations done in your browser
Industry Benchmarks
Compare your margins to industry standards
Mobile Friendly
Calculate on any device, anywhere
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Frequently Asked Questions
Answers to common profit margin questions
Amazon FBA profit margin = (Selling Price - Product Cost - FBA Fees - Referral Fee - Other Costs) / Selling Price × 100% FBA fees include: - Fulfillment fee ($3-5 for standard items) - Referral fee (8-45% by category) - Storage fees ($0.75-2.40/cubic ft) Example: $25 price, $8 cost, $4 FBA, $3.75 referral = 37% margin
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