The kilometre (American spelling: kilometer), symbol km is a unit of length in the metric system, equal to one thousand metres and is therefore exactly equal to the distance travelled by light in free space in ⁄ 299,792.458 of a second.
It is the conventionally used measurement unit for expressing distances between geographical places in most of the world; notable exceptions are the United States where the statute mile is used. The United Kingdom...
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The kilometre (American spelling: kilometer), symbol km is a unit of length in the metric system, equal to one thousand metres and is therefore exactly equal to the distance travelled by light in free space in ⁄ 299,792.458 of a second.
It is the conventionally used measurement unit for expressing distances between geographical places in most of the world; notable exceptions are the United States where the statute mile is used. The United Kingdom adopted the metric system in its Ordnance Survey since 1936, although road signs continue to show distances in miles. One kilometre equals 3,280 feet 10 /64 inches, approximately 14 inches short of 1,094 yards or approximately 0.6214 statute miles.
Slang terms for kilometre include click (sometimes spelled klick or klik) and kay (or k).
There are two pronunciations for the word:
The former pronunciation follows the general pattern in English whereby metric units of measurement are pronounced with the stress on the first syllable, and...
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