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 kilometers.
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.
kilometers to football field [U.S.]
kilometers to ch'ih [China]
kilometers to yoctometre
kilometers to klafter [Switzerland]
kilometers to mile [Roman, ancient]
kilometers to dekametre
kilometers to miil (mijl) [Danish]
kilometers to petametre
kilometers to quarter
kilometers to seemeile