(official BIPM spelling, British spelling, Canadian spelling, Australian, New Zealand, Irish, Indian and South African spelling) (metrology) An SI unit of length equal to 10³ metres. Symbol: km

plural of kilometre

Measured in kilometres/kilometers

In a kilometric way; on a scale of kilometers.

Standard unit of area, symbol km², equal to the area of a square whose sides are one kilometre long; 10⁶ square metres.

plural of square kilometre

plural of cubic kilometre

a unit of volume, km³, equal to 1,000,000,000 cubic metres

(UK) A location, usually in a nation's capital city, from which distances are measured.