**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 km.

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.

km to li [modern China]

km to meile [Austria]

km to mil

km to fod

km to gigaparsec

km to lug

km to kiloparsec

km to tenthmetre

km to el [Dutch]

km to mille [French]