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Square kilometre: Wikis


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From Wikipedia, the free encyclopedia

Square kilometre, symbol km2, is a decimal multiple of the SI unit of surface area, the square metre, one of the SI derived units. 1 km2 is equal to:


  • 1 m2 = 0.000 001 (10−6) km2
  • 1 hectare = 0.01 (10−2) km2
  • 1 square mile = 2.589988km2
  • 1 acre = 0.004047km2, 0.4047ha or 4047 m2

Note: "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.

Comparative order

The 106 m2 orders of magnitude page gives comparisons with geographic areas.

A hectare (104 m2) is less than a square kilometre which is less than a square megametre (1012 m2).


See also


Up to date as of February 01, 2010
(Redirected to Km² article)

From Familypedia

The ISO symbol "km²" means "square kilometres" (not to be confused with "kilometres squared"). One of them contains 100 ha (hectares) and/or 1 million square metres (m²) and is a little over twice the size of Vatican City, just over half the size of Monaco (country ranked 192nd by area), and one-third of the size of the City of London.

The Imperial unit "square mile" contains approximately 2.5900 km².

Facts about Km²RDF feed

This article uses material from the "Km²" article on the Genealogy wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Simple English

A square kilometre (sometimes written km² ) is based on the SI unit of measurement of area, the square metre. It is the area inside a square that has each side equal to 1 kilometre (1000 metres). This way of talking about area is often used to say how much land there is, on a farm or in a city, for example.

One square kilometre is just less than 0.39 square miles.


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