Stripe processing fees usually work as a percentage + a fixed fee per successful transaction, and the exact rate depends on your country/region, payment method (card vs ACH/bank debit), and whether the card is domestic or international. That’s why the same “Stripe fees calculator” result can change between UK, USA, EUR/Europe, Canada, Australia, India—your Stripe account pricing and payment mix matters.
What many people miss (and what reduces your net payout) are the common add-ons: international card fees, currency conversion (FX) fees, and sometimes higher costs for manually entered payments. Plus, disputes/chargebacks can add separate dispute fees, and subscriptions/invoicing tools may have product-based charges on top of standard transaction fees—so the best way to estimate accurately is to calculate total fee breakdown + net amount you receive using your exact settings.