Kilometres per hour

kilometre per hour
A car speedometer that indicates measured speed in kilometres per hour.
General information
Unit system	derived
Unit of	speed
Symbol	km/h
Conversions
1 km/h in ...	... is equal to ...
mph	0.621371
m/s	0.277778
kn	0.539957
ft/s	0.911344

The kilometre per hour (SI symbol: km/h; non-SI abbreviations: kph, kmph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour.