km/h to mph converter
Type a value in either box — it converts both ways instantly, right in your browser.
Quick reference table
| km/h | mph |
|---|---|
| 10 | 6.2 |
| 20 | 12.4 |
| 30 | 18.6 |
| 50 | 31.1 |
| 60 | 37.3 |
| 80 | 49.7 |
| 100 | 62.1 |
| 110 | 68.4 |
| 120 | 74.6 |
| 130 | 80.8 |
The formula
1 km/h = 0.621371 mph, and 1 mph = 1.609344 km/h. To convert km/h to mph, multiply by 0.621371. To convert mph to km/h, multiply by 1.609344.
Want your live speed instead of a fixed conversion? Use the online speedometer, which shows your current speed in either unit automatically.