Calculate Amazon FBA fees, net profit, and ROI for your products. Includes 2026 fulfillment fees by size tier and referral fees by category. No signup.
FBA fees have two components: Fulfillment fee (based on size/weight — $3-$20+ per unit) and Referral fee (8-15% of sale price by category). Total fees typically range 25-40% of the selling price for standard items.
Small standard (under 15x12x0.75in, under 1lb): lowest fees. Large standard (under 18x14x8in, under 20lb). Small, Medium, Large oversize for larger items. Our calculator automatically identifies your tier from dimensions.
Aim for at least 30% net margin after all Amazon fees, COGS, shipping to Amazon, and PPC advertising. Under 20% net margin is risky. Our calculator shows your margin clearly before you commit to a product.
Amazon charges 8-15% of sale price depending on category: Electronics 8%, Clothing 17%, Books 15%, Kitchen 8-15%. Our calculator has a category selector with the correct 2026 referral fee for each.
FBA: Higher fees but Prime badge, better Buy Box eligibility, and Amazon handles customer service. FBM: Lower fees but you handle storage, shipping, and returns. For most sellers, FBA wins on volume.
Yes — every FreeFixo tool, including the Free Amazon FBA Profit Calculator 2026, is 100% free with no paywall, no premium tier, and no usage limits. You do not need to create an account, enter a credit card, or share an email.