Square kilometre

Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km2, is a multiple of the square metre, the SI unit of area or surface area.

1 km2 is equal to:

  • 1,000,000 square metres (m2)
  • 100 hectares (ha)

It is also approximately equal to:

Conversely:

  • 1 m2 = 0.000001 (10−6) km2
  • 1 hectare = 0.01 (10−2) km2
  • 1 square mile = 2.5899 km2 [4]
  • 1 acre = about 0.004047 km2 [5]

The symbol "km2" means (km)2, square kilometre or kilometre squared and not k(m2), kilo–square metre. For example, 3 km2 is equal to 3×(1,000m)2 = 3,000,000 m2, not 3,000 m2.



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This article uses material from the Wikipedia article Square kilometre, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.