Convert Kilometers To Meters
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This measurement conversion is based on a simple rule: 1 km = 1000 m 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 1/299,792.458 of a second.
The metre (or meter), symbol m, is the base unit of length in the International System of Units (SI). Originally intended to be one ten-millionth of the distance from the Earth's equator to the North Pole, its definition has been periodically refined to reflect growing knowledge of metrology. Since 1983, it is defined as the distance travelled by light in a complete vacuum in 1/299,792,458 of a second.