Convert Km to Miles
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Kilometer (km)
Definition
A kilometer (km) is an SI unit of length equal to 1,000 meters or approximately 0.6214 miles.
History
The prefix kilo- means "thousand." The kilometer is based on the meter, which is defined by the distance light travels in 1/299,792,458 of a second.
Use
Used globally to measure distances on land, especially between locations. Still, countries like the US and parts of the UK use miles for road signs and driving.
Mile (mi)
Definition
A mile (mi) is an imperial and US customary unit equal to 5,280 feet or exactly 1,609.344 meters.
History
Originating from old English measurements, the mile was standardized in 1593 as 8 furlongs. Other versions include the Roman mile (5,000 feet) and the nautical mile (1.852 km).
Use
Still commonly used in the US, UK, Myanmar, and Liberia, especially for road distances and speed limits.