Formula
Divide by the international mile:
mph = km/h / 1.609344
This converts a speed number. It does not divide a distance by a time.
Assumptions
- The value can be zero and cannot be negative.
- The result is shown with up to six decimal places.
Worked example
1 kilometer per hour equals 0.621371 miles per hour.
Input definitions
- Kilometers per hour
- The speed you want in miles per hour.
Limitations
Posted speed limits are not checked. The page only changes the unit.
Questions
What is 100 km/h in mph?
Enter 100. It is about 62.137 miles per hour.
Is km/h the same as kph?
Yes. Both names mean kilometers per hour.