**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 kilometre.

Valid units must be of the **length** type.

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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.

kilometre to city block [Midwest U.S.]

kilometre to arms-length

kilometre to nail

kilometre to miil (mijl) [Danish]

kilometre to ell [Scotland]

kilometre to bamboo

kilometre to cape rood

kilometre to ligne [Swiss]

kilometre to gigaparsec