Unit Converter

Convert length, mass, data, time, speed and temperature units instantly.

Result
1

How to use this converter

  1. Pick a category such as length or mass.
  2. Enter the value and choose the source unit.
  3. Read the result in the target unit instantly.

Example

1 mile equals 1.60934 kilometers, and 100 km/h equals about 27.78 m/s.

How it works

Values are converted through a common base unit for each category. Temperature uses the proper offset formulas instead of a simple ratio.

Frequently asked questions

Are decimal and binary data units both supported?

Data sizes use decimal units (1 KB = 1000 bytes), which is the common convention for storage.

Why does temperature need special handling?

Unlike length or mass, Celsius, Fahrenheit and Kelvin use different zero points, so a ratio alone is not enough.