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KilometreA kilometre (or kilometer) (or km) is a unit of length equal to 1000 metres. It is approximately equal to 0.621 miles, 1 094 yards or 3 281 feet.See 1 E3 m to compare the length of a kilometre.
See also: SI, metre, SI prefix, Orders of magnitude, light year
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Kilometre".