Kilometers per Hour to Miles per Hour
Convert Kilometers per Hour (km/h) to Miles per Hour (mph) instantly, with a formula, reference table, and FAQ.
Formula
Kilometers per Hour × 0.621371 = Miles per Hour
Kilometers per Hour (km/h) and Miles per Hour (mph) are both units of speed. Use the converter above for any value, or check the quick-reference table below for common amounts.
Quick reference
| km/h | mph |
|---|---|
| 1 km/h | 0.621371 mph |
| 5 km/h | 3.10686 mph |
| 10 km/h | 6.21371 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
| 500 km/h | 310.686 mph |
| 1000 km/h | 621.371 mph |
Frequently asked questions
How many Miles per Hour is one Kilometers per Hour?
One Kilometers per Hour (km/h) equals 0.621371 Miles per Hour (mph).
How do I convert Kilometers per Hour to Miles per Hour?
Multiply the value in Kilometers per Hour by 0.621371 to get Miles per Hour.
Is the Kilometers per Hour to Miles per Hour conversion exact?
Yes — this converter uses the internationally defined conversion factor between kilometers per hour and miles per hour, accurate to several decimal places.