1 E6 m²
Encyclopedia : 1 : 1E : 1E6 : 1 E6 m²
To help compare sizes of different geographic regions, we list here areas between 1 km² (100 hectares) and 10 km² (1000 hectares). See also areas of other orders of magnitude.
- Areas smaller than 1 km²
- 1 Square kilometre (U.S. spelling: square kilometer), symbol km², is an SI unit of surface area. It is one of the SI derived units. It is equal to:
- * 100 hectares
- * 106 m² or 1,000,000 m²
- * 0.386 square miles
- * 247 acres
- * the area of a square of side length 1 km
- * a cube with this surface area has sides of length 408 m
- * a circle of this area has a radius of 564 m
- * a sphere of this surface area has a radius of 282 m
- 135 hectares—the campus of the United States Naval Academy
- 195 hectares—Monaco (country ranked 192nd by area)
- 200 hectares—Herm, Channel Islands
- 290 hectares—City of London
- 320 hectares—Hampstead Heath in London
- 650 hectares—Gibraltar
- 890 hectares—size of largest organism on Earth, Armillaria ostoyae. [Reference]
- Areas larger than 10 km²
Notes
"km²" means square kilometre and not kilo–square metre. For example, 3 km² is equal to 3 000 000 m² and not to 3000 m² (nor even 9 000 000 m²). Thus, in the case of an area, the SI prefixes provide steps of a factor one million instead of one thousand .
See also: Orders of magnitude
References
External links
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