Full name: kilometre
Plural form: kilometres
Symbol: km
Alternate spelling: kilometers
Category type: length
Scale factor: 1000
The SI base unit for length is the metre.
1 metre is equal to 0.001 kilometer.
Valid units must be of the length type.
You can use this form to select from known units:
A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.
kilometer to quarter [cloth]
kilometer to miil (mijl) [Sweden, ancient]
kilometer to city block [Midwest U.S.]
kilometer to hectometre
kilometer to zeptometre
kilometer to link [Gunter, survey]
kilometer to fall [Scotland]
kilometer to lieue [France, metric]
kilometer to myriametre
kilometer to kiloparsec