eBay Fees Calculator is a free set of tools for people who sell online in the US. We started with eBay and now cover ten of the marketplaces and payment services small sellers use most: eBay, PayPal, Amazon, Etsy, Cash App, Square, Copart, Stripe, Depop and Reverb.
How the calculators work
Each calculator uses the fee rates published on the platform’s own US fee pages. We show every fee on its own line so you can check the maths against your statements. Calculations run in your browser, and nothing you enter is stored or sent to us.
Keeping rates current
We review rates regularly; the last full review was in September 2026. Platforms can change fees at short notice, and some rates depend on your account, so every calculator lets you adjust the rates yourself.
Our guides
Our seller guides explain each fee in plain English, with worked examples produced by the same calculators you use.
Independence
We are not affiliated with any of the platforms we cover. If you spot a rate that has changed, please let us know.