Listmargin

Listmargin works out your eBay final value fees, ad fees, and what you

actually keep on a sale. Most fee calculators copy a four-line summary of

eBay's rates. This one reads the full published schedule: all 46 category

rates, the store subscription tables, and the four categories where crossing

a price threshold re-rates the entire sale.

It's free, with no signup and no paid tier. There's an embeddable version if

you run a blog or a tool site. A weekly monitor re-reads eBay's own fee

pages, so when a rate moves the calculator gets corrected instead of drifting

out of date.