About Fee Calc Lab
What this site is
Fee Calc Lab makes free calculators that show online sellers what they keep after marketplace fees. It's an independent project and isn't affiliated with, endorsed by, or sponsored by any marketplace mentioned on the site.
How fee tables are checked
Each calculator's fee rates are compared with the platform's own fee policy and help pages. The date of the last check and links to those pages are shown on every calculator. Platforms change their fees, so if you spot a difference, your platform's order details are the final word.
Results are estimates for planning prices. They are not tax, legal or accounting advice.
Privacy
The calculators run entirely in your browser. The numbers you type are not sent to us or stored anywhere, and you never need to sign up.
To see how many people visit each page, we use Cloudflare Web Analytics, which Cloudflare says doesn't collect visitors' personal data or track people across sites. We don't use advertising or tracking cookies.
Affiliate disclosure
Some pages may include paid links to tools for sellers. If you sign up or buy through one of those links, we may earn a commission at no extra cost to you. Paid links are labeled where they appear. They never change how a calculator works or what it shows.