Knockround · 7 days free, no credit card needed
Credit card fee calculator
This credit card fee calculator shows Stripe's fee on any amount. Type what your customer pays and see what Stripe's fee is and what reaches your bank account.
Work it out
Stripe's standard rates in the US, checked 8 November 2026: 2.9% + 30¢ for a US card, plus 1.5% for a card from another country, plus 1% more if the currency is converted. Source: stripe.com/us/pricing. What you type stays in your browser.
Why Knockround adds nothing
Knockround is a flat $24.99 a month. The card fee goes to Stripe for handling the payment; we take no share of it.
Try it on tomorrow’s work
Sign up in a minute with Google or your email. 7 days free with no credit card needed, then $24.99 a month or $249 a year.