Arbitrage Hero tools
Amazon FBA profit calculator
Check profit, ROI and margin for any flip before you buy - with Amazon referral and fulfilment fees taken into account.
A profitable flip has to survive three deductions: Amazon's referral fee (a percentage of the sale price, 15% for most categories), the FBA fulfilment fee (based on size and weight) and your own costs - the buy price, prep and shipping. This calculator applies all of them, so the profit you see is realistic, not optimistic.
Use ROI to compare flips of different sizes and margin to judge how much room a price drop would leave you. The breakeven sale price tells you how far the price can fall before the deal loses money.
Good to know
Frequently Asked Questions
How is FBA profit calculated?＋
Profit = sale price - referral fee - FBA fulfilment fee - buy cost - shipping and other per-unit costs. The referral fee is a percentage of the sale price (15% for most categories); the fulfilment fee depends on the size and weight of your product.
What is a good ROI for online arbitrage?＋
Most sellers aim for at least 30-40% ROI on online arbitrage flips, with a minimum profit per unit (for example $3-5) to cover surprises like price drops or returns.
Where do I find the exact FBA fulfilment fee?＋
Amazon publishes fulfilment fees by size tier and weight. For a quick check, look at the Selling Fees section of any similar listing - or let Arbitrage Hero pull the exact fees automatically for every product it analyzes.