Kilometers per hour to miles per hour
Type a value in km/h to get it in mph instantly.
That's 1.85× as fast as a galloping horse, while a cheetah is 1.08× faster. In one minute you'd cover 1.036 miles.
Convert the other way: mph to km/h
What it means
How fast is that?
Reference speeds are typical values. Mach uses the speed of sound in dry air at 20 °C (343 m/s).
The math
How to convert km/h to mph
To convert kilometers per hour to miles per hour, multiply by 0.621371.
Example: 100 km/h × 0.621371 = 62.1371 mph.
In the other direction, 1 mph = 1.60934 km/h.
Every unit
Your speed in every unit
Tables
km/h to mph conversion table
| km/h | mph |
|---|---|
| 1 km/h | 0.621371 mph |
| 5 km/h | 3.10686 mph |
| 10 km/h | 6.21371 mph |
| 20 km/h | 12.4274 mph |
| 30 km/h | 18.6411 mph |
| 40 km/h | 24.8548 mph |
| 50 km/h | 31.0686 mph |
| 60 km/h | 37.2823 mph |
| 70 km/h | 43.496 mph |
| 80 km/h | 49.7097 mph |
| 90 km/h | 55.9234 mph |
| 100 km/h | 62.1371 mph |
| 110 km/h | 68.3508 mph |
| 120 km/h | 74.5645 mph |
| 130 km/h | 80.7783 mph |
| 150 km/h | 93.2057 mph |
| 200 km/h | 124.274 mph |
| 300 km/h | 186.411 mph |
| 500 km/h | 310.686 mph |
| 1,000 km/h | 621.371 mph |
mph to km/h conversion table
| mph | km/h |
|---|---|
| 1 mph | 1.60934 km/h |
| 5 mph | 8.04672 km/h |
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 30 mph | 48.2803 km/h |
| 40 mph | 64.3738 km/h |
| 50 mph | 80.4672 km/h |
| 60 mph | 96.5606 km/h |
| 70 mph | 112.654 km/h |
| 80 mph | 128.748 km/h |
| 90 mph | 144.841 km/h |
| 100 mph | 160.934 km/h |
| 110 mph | 177.028 km/h |
| 120 mph | 193.121 km/h |
| 130 mph | 209.215 km/h |
| 150 mph | 241.402 km/h |
| 200 mph | 321.869 km/h |
| 300 mph | 482.803 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.34 km/h |
Quick answers
Quick answers
- How many mph is 1 km/h?
- 1 km/h is 0.621371 mph.
- How many mph is 10 km/h?
- 10 km/h is 6.21371 mph.
- How many mph is 100 km/h?
- 100 km/h is 62.1371 mph.
The units
About these units
Kilometers per hour (km/h)
The kilometer per hour is the speed unit on road signs and speedometers in most of the world. 1 km/h is 1,000 meters in 3,600 seconds, about 0.278 m/s.
Miles per hour (mph)
The mile per hour is used on road signs in the United Kingdom, the United States and a few other countries. A mile is exactly 1,609.344 meters, so 1 mph is 1.609344 km/h.
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