Unit Converter
Convert across length, mass, volume, area, speed, time, data, and temperature.
How it works
- 1 Pick a category: Length, Mass, Temperature, and more.
- 2 Type a value, then choose the units to convert from and to.
- 3 Copy the result with one click.
Built on web standards
Built with standard browser APIs — no third-party libraries.
Frequently asked
Which units are supported? +
Length, mass, volume, area, speed, time, data (binary KB/MB), and temperature (Celsius, Fahrenheit, Kelvin). Each category has the common SI and imperial units.
How accurate are the conversions? +
Factors use exact definitions where they exist, like 1 inch = 0.0254 m. For typical values, results are accurate to many decimal places.