Convert between more than a hundred units across ten categories — length, mass, temperature, area, volume, speed, data, time, pressure and energy. Every conversion is calculated in your browser, and the same value is shown in every unit of the category at once.
1 m = 3.280839895 ft
1 m in every length unit
Nanometre1,000,000,000 nm
Micrometre1,000,000 µm
Millimetre1,000 mm
Centimetre100 cm
Metre1 m
Kilometre0.001 km
Inch39.37007874 in
Foot3.280839895 ft
Yard1.093613298 yd
Mile0.000621371192 mi
Nautical mile0.000539956803 nmi
Light year1.057001e-16 ly
How to use Unit Converter
1Pick a category — the units and a sensible default pair load with it.
2Type an amount and choose what to convert from and to.
3Use the swap button to reverse the direction without retyping.
4The table underneath shows your value in every other unit at once.
