Unit Converter

Length, weight, temperature, speed, area and data sizes — converted instantly with precise factors.

About this tool

Metric meets imperial every day: kilometres to miles for a run, kilograms to pounds for a recipe, MB to MiB for a download limit. This converter covers the six categories developers and humans actually need, using exact standard factors rather than rounded approximations.

How to use it

  1. Pick a category, type a value and choose the from/to units — the result updates live.
  2. Temperature converts properly through the real formulas (°C, °F, K), not fake ratios.

Good to know

  • Length, weight, speed and area use internationally defined factors (1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly).
  • Data sizes distinguish decimal units (KB = 1000 B, as drive makers use) from binary ones (KiB = 1024 B, as operating systems often report).
  • Results keep up to 8 decimal places, with scientific notation for extreme magnitudes.