Currency Converter with an Editable Exchange Rate

Convert an amount using an exchange rate you supply. Enter how many target-currency units equal one source-currency unit. This tool does not fetch a live rate.

Calculate

Use a decimal point, without thousands separators. Prefilled values are editable examples.

Enter your values and select Calculate.

Formula and calculation method

Target amount = source amount × target units per source unit. For the reverse direction, use the reciprocal rate, 1/rate.

Worked example

If 1 source unit buys 1.10 target units, 200 source units become 220 target units before fees. The reverse rate is about 0.909091, not 1.10.

Assumptions and limitations

Currency names, quote time, bid/ask spreads and fees are not inferred. Check the provider, date and direction of the quote. Reference rates are not necessarily rates available for a transaction, and selecting a currency elsewhere on the site does not perform conversion.

Sources and reference scope

References support the identified formula, unit or jurisdiction. They do not imply endorsement of this site. Check the original document for current conditions and exceptions.

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English edition: 16 September 2026.