About km/h to mph
For speed limits abroad, car specs, and cycling or running speeds.
To convert, divide the value in kilometers per hour by 1.609344. For example, 90 km/h = 55.9234 mph.
Kilometers per hour: kilometers traveled in one hour. Miles per hour: miles traveled in one hour, exactly 1.609344 km/h.
Kilometers per hour to miles per hour conversion table
Formula: mph = km/h ÷ 1.609344
| Kilometers per hour | Miles per hour |
|---|---|
| 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 |
Values rounded to 6 significant figures.
How to do it
- 1
Type a value in kilometers per hour in the converter above (it is preset to km/h → mph).
- 2
Read the result instantly; tap Swap units to convert the other way.
- 3
Use the table for common values or the formula mph = km/h ÷ 1.609344 to convert by hand.