**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.

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.

kilometre to petametre

kilometre to mil [Sweden]

kilometre to step

kilometre to stick

kilometre to shackle

kilometre to fathom

kilometre to alen [Scandinavia]

kilometre to milímetro

kilometre to pu [China]

kilometre to ligne [Swiss]