Convert Kilometers per hour (km/h) to Miles per hour (mph)
Enter a value below to convert Kilometers per hour (km/h) to Miles per hour (mph).
Conversion:
1 Kilometers per hour (km/h) = 0.62137119229 Miles per hour (mph)
How to Convert Kilometers per hour (km/h) to Miles per hour (mph)
1 kph = 0.62137119229 mph
1 mph = 1.6093439999 kph
Example: convert 15 Kilometers per hour (km/h) to Miles per hour (mph):
25 kph = 15.534279807 mph
Kilometers per hour (km/h) to Miles per hour (mph) Conversion Table
| Kilometers per hour (km/h) | Miles per hour (mph) |
|---|---|
| 0.01 kph | 0.0062137119229 mph |
| 0.1 kph | 0.062137119229 mph |
| 1 kph | 0.62137119229 mph |
| 2 kph | 1.2427423846 mph |
| 3 kph | 1.8641135769 mph |
| 5 kph | 3.1068559614 mph |
| 10 kph | 6.2137119229 mph |
| 20 kph | 12.427423846 mph |
| 50 kph | 31.068559614 mph |
| 100 kph | 62.137119229 mph |
| 1000 kph | 621.37119229 mph |
Kilometers per hour (km/h)
Definition
Kilometers per hour (km/h or kph) is a metric unit of speed expressing the number of kilometers traveled in one hour. 1 km/h ≈ 0.2778 m/s.
History
Kilometers per hour became widely used in the 20th century as road networks expanded globally. Most countries adopted km/h for speed limits during the metrication movements of the 1960s–1980s.
Current use
Kilometers per hour is the standard unit for road speed limits and vehicle speedometers in most countries worldwide (except the US, UK, and a few others). It is also used in weather reports for wind speed in many nations.
Miles per hour (mph)
Definition
Miles per hour (mph) is an imperial unit of speed expressing the number of statute miles traveled in one hour. 1 mph ≈ 1.60934 km/h.
History
Miles per hour became the standard speed unit as horse-drawn transport gave way to automobiles in the early 20th century. The United States and United Kingdom adopted mph for their road systems.
Current use
Miles per hour is the official unit for road speed limits and vehicle speedometers in the United States, United Kingdom, and a few other countries. It is also used in baseball (pitch speed) and informal speed references.