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Revision as of 10:13, 27 April 2010 by Conttest (talk | contribs) (rv vandal)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Square kilometre, symbol km, is a decimal multiple of the SI unit of surface area, the square metre, one of the SI derived units. 1 km is equal to:
- 1,000,000 m
- 100 ha (hectare)
- 0.386102 square miles
- 247.105381 acres
Conversely:
- 1 m = 0.000 001 (10) km
- 1 hectare = 0.01 (10) km
- 1 square mile = 2.589988km
- 1 acre = 0.004047km, 0.4047ha or 4047 m
Note: "km" means (km), square kilometre or kilometre squared, and not k(m), kilo–square metre. For example, 3 km is equal to 3×(1,000m) = 3,000,000 m, not 3,000 m.
Comparative order
The 10 m orders of magnitude page gives comparisons with geographic areas.
A hectare (10 m) is less than a square kilometre which is less than a square megametre (10 m).
Source
- "Conversion Factors". MINFILE Coding Manual. Ministry of Energy, Mines and Petroleum Resources. Government of British Columbia. Retrieved 2007-10-13.
See also
- Conversion of units
- SI prefix for the precise meaning of the prefix "k"
- Square Kilometre Array, a proposed radio telescope
which is intended to have a collecting area of approximately one square kilometre
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