Amazon FBA Profit Calculator
US FBA unit economics using referral rates by category, 2026 fulfillment tables by size tier and weight, and the 3.5% fuel surcharge on fulfillment.
Rates checked October 3, 2026. Source: Amazon US FBA fee help. Confirm size tier and weight in Seller Central’s revenue calculator.
Worked example
Sale: $24.99 · Home & Kitchen · small standard 8 oz · landed cost: $8.00
Referral (15%): $3.75 · Fulfillment: $3.54 · Fuel surcharge: $0.12
Profit: $9.40 · Margin: 37.62%
Are my numbers sent to a server?
No. The math runs in the browser and nothing typed is uploaded or stored.