**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 mile [Britain, ancient]

kilometre to arsheen [Russia]

kilometre to douzičme [watchmaking]

kilometre to li [ancient China]

kilometre to block [East U.S.]

kilometre to quadrant

kilometre to mile [survey]

kilometre to chain [Ramsden, engineer]

kilometre to pik