About this tool
Convert between common units of length, mass, temperature, data size and speed. Pick a category, choose the source and target units, and get an instant, precise result. Metric and imperial supported.
Frequently asked questions
How is temperature converted?
Celsius, Fahrenheit and Kelvin are converted through their exact formulas, not simple ratios.
Does data use 1024 or 1000?
Both are available. KB, MB, GB and TB are decimal (1 KB = 1000 bytes), as used by drive makers and the SI; KiB, MiB, GiB and TiB are binary (1 KiB = 1024 bytes), which is how many operating systems report storage.