Square Kilometre
/skwɛːˌˈkɪləˌmiːtə,kɪˈlɒmɪtə/
Symbol: km²
Unit system: SI
Unit system: SI
What is the Square Kilometre?
The square kilometre is a unit of area and is a multiple of the square metre; an SI derived unit. It has the symbol km².
A square kilometre is equal to the area of a square with edges 1km long. There are 1,000,000 square metres in a square kilometre.
Square kilometres are often used to describe expansive areas of land due to the large unit size.