Convert Miles per hour to Kilometers per hour
One mile per hour equals 1.609343 kilometers per hour. Type any value to convert miles per hour to kilometers per hour instantly — with a full reference table below.
Convert Miles per hour to Kilometers per hour
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Conversion formula
To convert miles per hour to kilometers per hour, multiply by 1.609343. One mile per hour equals 1.609343 km/h, and one kilometer per hour equals 0.621372 mph.
Miles per hour to Kilometers per hour table
About converting Miles per hour to Kilometers per hour
Miles per hour (mph) and Kilometers per hour (km/h) are both units of speed. The exact factor is 1 mph = 1.609343 km/h, so multiply by 1.609343 to go from miles per hour to kilometers per hour (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Kilometers per hour to Miles per hour converter, or the full unit converter for every unit at once.