About UnitConv

UnitConv is a free online unit converter built for everyone who needs fast, accurate measurement conversions — whether you are a student checking homework, an engineer double-checking a calculation, a home cook scaling a recipe, or a traveller comparing distances in miles and kilometres.

The site covers eleven measurement categories: length, weight, volume, temperature, area, time, speed, energy, pressure, power, and digital data. Every unit page includes the conversion formula, a reference table of common values, real-world examples, and answers to the questions people most often ask.

Accuracy

All conversion factors used on this site are sourced from the National Institute of Standards and Technology (NIST) and the International Bureau of Weights and Measures (BIPM). Where an exact SI or imperial definition exists, we use it — no rounded or approximated factors.

Privacy

UnitConv does not require registration or a login. We do not track personal information. See our privacy policy for full details.

Contact

Questions, feedback or spotted a bug? Reach out via our contact page.