One kilometer per hour (km/h) is equal to approximately 0.621371 miles per hour (mph). To convert km/h to mph, multiply the speed in km/h by 0.621371.
Conversion Formula and Details
- 1 km/h = 0.621371 mph
- To convert any speed from kilometers per hour to miles per hour:
mph=km/h×0.621371\text{mph}=\text{km/h}\times 0.621371mph=km/h×0.621371
- For example, 100 km/h is about 62.1371 mph.
Common Conversion Values
Kilometers per Hour (km/h)| Miles per Hour (mph)
---|---
1| 0.621371
5| 3.10686
10| 6.21371
20| 12.4274
50| 31.0686
100| 62.1371
This conversion is widely used for speed measurements, especially when comparing metric system speeds to those in the US or UK where mph is common.
