Unit Converter

Category lengthmasstemperaturedataareavolumespeedpressureenergy

Value From m — meterskm — kilometerscm — centimetersmm — millimetersin — inchesft — feetyd — yardsmi — miles To m — meterskm — kilometerscm — centimetersmm — millimetersin — inchesft — feetyd — yardsmi — miles Convert

Why the results are exact

Unit conversions are definitions, not measurements: an inch is exactly 25.4 mm, a pound is exactly 0.45359237 kg, an acre is exactly 4046.8564224 m², and Fahrenheit is a fixed formula. This converter computes with exact integer fractions instead of floating point, rounds once at nine decimals, and — uniquely — tells you whether the answer is exact or rounded. 100 °C → 212 °F: exact. 1 GB → GiB: rounded, and labeled as such. Nine categories: length, area, volume, mass, speed, pressure, energy, temperature and data.

Decimal vs binary data units

Storage marketing uses decimal units (1 GB = 10⁹ bytes); operating systems often use binary ones (1 GiB = 2³⁰ bytes). Both families are here, correctly named, so you can see exactly where the “missing” disk space went.