Square kilometre

'''Square kilometre''' (US spelling: Square kilometer), symbol km², is an SI unit of surface area. It is one of the SI derived units. 1 km² is equal to:

• the area of a square measuring 1 kilometre on each side
• 1 000 000 m²
• 100 hectares
• 0.386 102 square miles (statute)
• 247.105 381 acres

Conversely:

• 1 m² = 0.000 001 km²
• 1 hectare = 0.01 km²
• 1 square mile = 2.589 988 km²
• 1 acre = 0.004 047 km²

The 1 E6 m² orders of magnitude page gives comparisons with geographic areas. hectare << square kilometre << square megametre

See also

• Conversion of units.

Category:SI derived units of area af:Vierkante kilometer ca:Quilòmetre quadrat da:Kvadratkilometer de:Quadratkilometer es:Kilómetro cuadrado eo:kvadrata kilometro fi:Neliökilometri fr:Kilomètre carré hr:Četvorni kilometar he:קילומטר רבוע hu:Négyzetkilométer ja:平方キロメートル lb:Km%C2%B2 lv:Kvadrātkilometrs nl:Vierkante kilometer pl:Kilometr kwadratowy sl:kvadratni kilometer sv:Kvadratkilometer th:ตารางกิโลเมตร tt:Quadrat kilometer zh:%E5%B9%B3%E6%96%B9%E5%85%AC%E9%87%8C

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