Amazon FBA Fee & Margin Calculator
Calculate Amazon FBA fees, net profit, ROI, and margin for any product. Includes referral fees, fulfillment fees, and estimated storage costs.
Amazon FBA
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Est. Monthly Storage Fee
$0.90/mo
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Fee Breakdown (%, of selling price)
The Formula
Amazon FBA profitability requires accounting for Amazon's referral fee (percentage of sale price), fulfillment fees (based on weight and size), and storage fees.
Variable Definitions
Category Referral Fee
Amazon charges 8-20% of the sale price depending on product category.
Fulfillment by Amazon Fee
Per-unit fee for Amazon to pick, pack, and ship your product based on weight and dimensions.
Monthly Inventory Storage
Fee for storing your inventory in Amazon's fulfillment centers (higher Oct-Dec).
How to Use This Calculator
- 1
Enter your Amazon selling price and product cost (landed cost).
- 2
Enter the packaged weight of the unit.
- 3
Select the product category for the correct referral fee percentage.
- 4
View net profit, margin, ROI, and itemized fee breakdown.
Quick Reference
| From | To |
|---|---|
| Referral Fee (Electronics) | 8% of selling price |
| Referral Fee (Standard) | 15% of selling price |
| Referral Fee (Jewelry) | 20% of selling price |
| FBA Fee (1 lb standard) | ~$3.22 |
| FBA Fee (2 lb standard) | ~$4.18 |
| FBA Fee (5 lb standard) | ~$6.05 |
| Monthly Storage (standard) | ~$0.75 per cubic ft |
| Minimum Net Margin Target | 15-20% after all costs |
Common Applications
- Product sourcing evaluation — analyze potential products before purchasing inventory to verify that margins are viable after all Amazon fees
- Pricing strategy — determine the minimum selling price needed to maintain target margins across different product categories and weight tiers
- Fee comparison across categories — compare how profitability changes if a product is listed in different Amazon categories with different referral fee percentages
- Inventory planning — estimate total fee burden per unit to forecast monthly and annual profit across projected sales volumes
- ROI analysis — calculate return on investment including all fees to compare Amazon FBA against other sales channels like eBay, Shopify, or wholesale
Amazon FBA fees — referral, fulfillment, and storage fees reduce your profit
Understanding the Concept
Amazon FBA sellers must account for multiple layers of fees that can significantly erode margins. The referral fee (8-20%) is charged on every sale. The FBA fulfillment fee covers picking, packing, and shipping. Monthly storage fees apply for all inventory held in Amazon warehouses (significantly higher October through December for Q4). Successful FBA sellers typically target a minimum 25-30% net margin after all fees. Products with margins below 15-20% are generally not viable on Amazon due to competition and advertising costs.
Frequently Asked Questions
Sources & References
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