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Free Amazon FBA profit calculator

Estimate your referral fee, FBA fulfilment fee, net profit, margin and ROI in seconds. Built on 2025–2026 US fee logic — no signup required.

Your product

Estimate only. Excludes PPC, monthly & long-term storage, returns processing and promotions.

Estimated net profit / unit

$0.00
Referral fee$0.00
FBA fulfilment fee$0.00
Net proceeds from Amazon$0.00
Profit margin0%
Return on investment (ROI)0%
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What this Amazon FBA calculator shows you

Every figure is derived from Amazon's published 2025–2026 US fee structure. The referral fee is a percentage of your selling price set by category. The FBA fulfilment fee is a flat charge by size and weight that covers pick, pack and ship. Subtract those plus your landed cost, and what's left is your real per-unit profit.

Why most free calculators overstate your margin

Many tools model only the referral fee and a rough fulfilment estimate. They routinely miss three things that erode margins: storage fees on slow-moving inventory, dimensional weight (you may be charged on DIM weight, not actual weight), and the correct size tier — being in a larger tier can change fees by several dollars per unit. For a precise, account-specific picture, request a free fee audit.

FAQs

Calculator FAQs

How the FBA profit calculator works.

Is this Amazon FBA calculator free?+
Yes — completely free, no signup. Enter your price, cost and weight to estimate referral fees, FBA fulfilment fees, net profit, margin and ROI in seconds.
How accurate are the fee estimates?+
The calculator uses simplified 2025–2026 US fee logic for a fast estimate. It excludes PPC, long-term storage, returns processing and promotions. For an exact, account-specific fee audit, request a free audit.
What fees does the calculator include?+
Referral fee (by category) and FBA fulfilment fee (by weight), netted against your landed cost to show profit, margin and ROI. It does not include monthly storage, advertising or removal fees.
Why is my real margin lower than other calculators show?+
Most free calculators only model the referral fee and a rough fulfilment estimate. They miss size-tier and dimensional-weight effects and storage — which is exactly where margins quietly erode.