Payment Processing Fee Calculator
The payment processing fee calculator estimates the fee deducted from a transaction using a percentage rate and fixed per-transaction charge.
How to use this calculator
- Enter the transaction amount, percentage rate and fixed fee in the same currency convention.
- Check the units and definitions before comparing results with another source.
- Change one input at a time when comparing scenarios, and keep the reporting period and assumptions consistent.
Formula used by the payment processing fee calculator
Fee = amount × rate/100 + fixed fee; net proceeds = amount − fee
- Fee = amount × rate/100 + fixed fee; net proceeds = amount − fee
- Actual fees depend on the provider, card type, location, currency, refunds, disputes and contract. This does not identify a best provider.
- Inputs are checked for required values and valid ranges; displayed results are rounded for readability.
Worked examples
Worked example
A 100-unit transaction, 2.9% variable fee and 0.30 fixed fee.
The fee is 100×0.029 + 0.30 = 3.20, leaving 96.80 before any other adjustments.
The fee is 100×0.029 + 0.30 = 3.20, leaving 96.80 before any other adjustments.
Understanding the result
The payment processing fee calculator estimates the fee deducted from a transaction using a percentage rate and fixed per-transaction charge.
Actual fees depend on the provider, card type, location, currency, refunds, disputes and contract. This does not identify a best provider.
Important notes
Actual fees depend on the provider, card type, location, currency, refunds, disputes and contract. This does not identify a best provider.
The result applies to the numbers and assumptions entered here; verify specifications for safety-critical or regulated uses.
Frequently asked questions
Does this include chargeback or cross-border fees?
No. Add those costs separately if they apply under your payment provider’s terms.
Can the fee exceed the transaction amount?
A very high input rate or fixed fee can make net proceeds zero or negative, which is a warning to review the assumptions.
How do I use this calculator?
Enter the transaction amount, percentage rate and fixed fee in the same currency convention.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.