km/h
mi/h

How to convert kilometers per hour to miles per hour

1 kilometer per hour is equal to 0.621371 miles per hour:

1 km/h = (1/1.609344) mi/h = 0.621371 mi/h

When a speed V in kilometers per hour is divided by 1.609344, it gives speed in miles per hour.

Vmi/h = Vkm/h / 1.609344


Example

To convert 30 kilometers per hour into miles per hour, it is divided by 1.609344:

(30 km/h) / 1.609344 = 18.641136 mi/h

Kilometers per hour

The kilometers per hour is a unit of speed (scalar quantity) and velocity (vector quantity). It is equal to the distance traveled a body in kilometers in one hour. The SI symbols is km/h, and abbreviations are kph, kmph, km/hr.

Miles per hour

Miles per hour is a British imperial and United States customary unit of speed. It is equal to the the number of miles traveled in one hour. The unit symbols are mph or mi/h.

Quick Conversion Table

The quick kilometer per hour to mile per hour conversion table is given below:

Kilometers per hourMiles per hour
10 km/h6.214 mi/h
20 km/h12.427 mi/h
30 km/h18.641 mi/h
40 km/h24.855 mi/h
50 km/h31.069 mi/h
60 km/h37.282 mi/h
70 km/h43.496 mi/h
80 km/h49.71 mi/h
90 km/h55.923 mi/h
100 km/h62.137 mi/h