Convert Kilometer per Hour to Mile per Hour
Use this free converter to change kilometers per hour (km/h) into miles per hour (mph). Kilometer per hour and mile per hour both measure speed. As a quick reference, 1 km/h equals 0.62137119 mph, and 1 mph equals 1.609344 km/h.
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Mile per Hour (mph)
0.62137119
1 km/h = 0.62137119 mph
Speed conversion table
| Kilometer per Hour | Mile per Hour |
|---|---|
| 0.01 | 0.0062137119 |
| 0.1 | 0.062137119 |
| 0.5 | 0.3106856 |
| 1 | 0.62137119 |
| 2 | 1.2427424 |
| 3 | 1.8641136 |
| 5 | 3.106856 |
| 10 | 6.2137119 |
| 20 | 12.427424 |
| 25 | 15.53428 |
| 50 | 31.06856 |
| 100 | 62.137119 |
| 1,000 | 621.37119 |
How to convert Kilometer per Hour to Mile per Hour
Multiply the kilometer per hour value by 0.62137119 to get miles per hour.
- Enter the number of kilometers per hour you want to convert.
- The converter instantly shows the equivalent value in miles per hour.
- Worked example: 15 km/h × 0.62137119 = 9.3205679 mph.
- Use the swap button to reverse the conversion (mile per hour to kilometer per hour).
About these units
Kilometer per Hour (km/h)
- Definition
- A kilometer per hour (km/h) expresses speed as the number of kilometers travelled in one hour.
- History
- It became common alongside metric road networks and the automobile.
- Current use
- Kilometers per hour are the standard speed unit on roads in most of the world.
Mile per Hour (mph)
- Definition
- A mile per hour (mph) expresses speed as the number of miles travelled in one hour.
- History
- It developed with road and rail travel in Britain and the United States.
- Current use
- Miles per hour are used for speed limits and vehicle speeds in the US and UK.
Frequently asked questions
How many miles per hour are in a kilometer per hour?
There are 0.62137119 mph in 1 km/h. To convert, multiply the number of kilometers per hour by 0.62137119.
How do I convert kilometers per hour to miles per hour?
Multiply the kilometer per hour value by 0.62137119 to get miles per hour. For example, 10 km/h = 6.2137119 mph.
Is this kilometer per hour-to-mile per hour converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Kilometer per Hour to other speed units
| Unit | 1 Kilometer per Hour equals |
|---|---|
| Meter per Second (m/s) | 0.27777778 m/s |
| Mile per Hour (mph) | 0.62137119 mph |
| Knot (kn) | 0.5399568 kn |
| Foot per Second (ft/s) | 0.91134442 ft/s |
| Mach (Ma) | 0.00080984775 Ma |