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|Expressed in:||1 km =|
|SI units||1000 m|
|imperial/US units|| 0.62137 mi|
|nautical units||0.53996 nmi|
It is often used to measure the speed of cars, planes and boats by saying how many kilometres it can travel in an hour. This is shown as km/h.
It is also spelled kilometer. This spelling is used in American English.
One kilometre is 0.6214 miles (3280.84 feet). This means that one mile is 1.6093 kilometres.
One kilometre is the approximate distance a healthy adult human being can walk in ten minutes.