Converters
Turning one value into another, precisely and without clutter.
3 tools
- Unit converter23 quantities, from length and mass to pressure, viscosity, ppm and fuel economy.
- Number base converterBinary, octal, decimal and hex, with two’s complement.
- Roman numerals converterConverts numbers to Roman numerals and back, from 1 to 3999, with a breakdown.
Accuracy
The unit converter uses exact definitions (1 inch = 25.4 mm, 1 pound = 0.45359237 kg), so results are good to 15 significant digits. Currency conversion at the NBP rate is in the Finance section.