Kilometre (km)
A kilometre (US spelling: kilometer; symbol: km) is a unit of length that is equal to 1,000 metres, the current International System of Units (SI) base unit of length. The kilometre is part of the metric system. A corresponding unit of area is the square kilometre and a corresponding unit of volume is the cubic kilometre.
Metric
- Kilometre (km)1
- Metre (m)1,000
- Decimetre (dm)10,000
- Centimetre (cm)100,000
- Millimetre (mm)1,000,000
- Micrometre (µm)1×10⁹
- Nanometre (nm)1×10¹²
- Angstrom (Å)1×10¹³
Nautical
- Nautical mile0.54
- Fathom546.81
Astronomical
- Parsec (pc)3.24×10⁻¹⁴
- Light year1.06×10⁻¹³
- Astronomical unit (AE)6.68×10⁻⁹
- Light minute5.56×10⁻⁸
- Light second3.34×10⁻⁶