Put a fee calculator on your site

Pick a calculator, copy the code and paste it into your page. It is free, needs no account and shows our checked rates, so your readers always see the current fees.

Preview

This is how it looks on your page. It fits columns from 320px wide.

What you get, and the one thing we ask

How to add it

WordPress

In the block editor, add a Custom HTML block and paste the code. Some hosted plans strip iframes; if the calculator does not show, check your plan's help pages.

Squarespace, Wix and other site builders

Add an Embed or HTML block and paste the code.

Forums and plain HTML

Paste the code where the calculator should appear. Sites that strip iframes, such as most forums, keep only the link.

Embed the Seller Fee Index chart

A chart of what each US marketplace takes from a sale, updated each quarter. The code is on the Seller Fee Index page.

Common questions

Does the calculator slow down my page?

The code loads it lazily: the browser fetches it only when a reader scrolls near it. All calculations run in the reader's browser.

Can I change the size?

Yes. It takes the full width of its column, up to 640px. Change the height value in the code if your theme needs more or less room.

Do I need to update it when fees change?

No. The calculator loads from our site, so it always shows the rates we have checked most recently.

Does it collect my readers' data?

No. Entries stay in the reader's browser and are not sent to us. The calculator sets no cookies and runs no analytics.

Is it affiliated with eBay, PayPal or the other platforms?

No. SellerFeeCheck is independent and is not affiliated with any of the platforms it covers.