The Amazon seller fee calculator breaks down every Amazon fee — referral fees, FBA fulfillment fees, and storage costs — so you can verify your margins before listing any product.
How to Calculate Amazon Seller Fees
The Amazon seller fee calculator prevents pricing mistakes that destroy margins. Many sellers discover too late that Amazon fees consume 30-40% of their sale price, leaving thin or negative profits.
The Minimum Viable Price Formula
For FBA products: Minimum Price = (Product Cost + FBA Fee) ÷ (1 − Referral Rate − Target Margin). For a product costing $8, FBA fee of $3.22, 15% referral rate, targeting 20% margin: ($8 + $3.22) ÷ (1 − 0.15 − 0.20) = $17.26 minimum. Below this price, you're working for Amazon.
FBA Size Tiers
Small standard: 16 oz and under = $3.22 FBA fee. Large standard: 16 oz to 3 lbs = $4.51-$5.53. Large bulky: 3-50 lbs = $9.73+. Keeping products in the small standard tier dramatically improves margins — design packaging to stay under 16 oz when possible.
Frequently Asked Questions
How are Amazon FBA fees calculated?
Amazon charges two main fees: Referral Fee (6-17% of sale price depending on category) and FBA Fulfillment Fee ($3.22-$7.17+ based on size tier and weight). Additional fees include storage fees ($0.78/cubic foot/month standard, $2.40/cu ft for oversized).
What is Amazon's referral fee?
Referral fees range from 6% (electronics) to 17% (jewelry, fine art). Most common categories charge 15%: clothing, shoes, luggage, watches. Books/music/video are 15%. Electronics 8%. Kitchen/home goods 15%.
FBA vs FBM — which is better?
FBA (Fulfilled by Amazon): Higher fees but Prime eligibility, better Buy Box chances, no fulfillment work. FBM (Fulfilled by Merchant): Lower fees but you handle shipping, no automatic Prime. FBA wins for products where Prime matters and margins support the fees.
Is this calculator free?
Yes, completely free with no signup.