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Square kilometre
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(Redirected from Km²)
Square kilometre (U.S. 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
Note: "km²" means square kilometre and not kilo–square metre. For example, 3 km² is equal to 3 000 000 m², not 3000 m².
[edit] Comparative order
The 1 E6 m² orders of magnitude page gives comparisons with geographic areas.
hectare (104 m²) < square kilometre < square megametre (1012 m²)
[edit] See also
- Conversion of units.
- SI prefix for the precise meaning of the prefix "k"
[edit] External links
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