Use this converter when the source value, representation, or measurement unit is known and you need the equivalent value in a supported target form without changing its underlying meaning.

Amount

Required number input.

From currency

Required string input.

To currency

Required string input.

Exchange rate

Required number input.

Convert a currency amount using a supplied positive exchange rate; applications may obtain current or historical rates from a data provider. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Converted amount

The resulting converted amount returned as a number.

Currency

The resulting currency returned as a string.

• A conversion is only valid when the input convention is identified correctly. Unit systems, character encodings, byte order, color profiles, reference conditions, rounding, and calendar or time-zone rules can make superficially similar values non-equivalent.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Keep the original value and its unit or encoding alongside the result. For interchange, also validate the output against the receiving format, standard, color profile, or reference conditions.

• Convert Data Rate

  Convert finite data rate values between supported units.

• Convert Amount of Substance

  Convert finite amount of substance values between supported units.

• Decimal to Roman Converter

  Convert a positive integer between one and 3999 to its Roman numeral representation.