Calculateur comparison calculators
Compare sale price, fee rates, shipping cost, and item cost before choosing a marketplace.
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RotoCurveCalculateur: Stripe vs PayPal Fee CalculatorCompare payment processor fees and net payout for the same charge.
RotoCurveCalculateur: Square vs Stripe Fee CalculatorCompare in-person or online processing fees for a sale.
How to compare fairly
A fair comparison should use the same sale price, item cost, shipping plan, return assumption, payment method, and promotion budget on both sides. Otherwise the cheaper-looking option may only look better because an input was left out.
Use this page to narrow the decision, then verify current public fees and account-specific terms before changing platforms or pricing.
How to use this page well
Use this page as a planning aid, not a final quote or official rule. Replace defaults with your own numbers, compare more than one scenario, and check any important fee, tax, carrier, or marketplace policy against the official source before acting.
- Use real costs instead of rounded guesses whenever possible.
- Review the result together with shipping, returns, discounts, taxes, and payment fees.
- Save or repeat the calculation when costs change, because small inputs can change profit quickly.