Convert Kilometers per Hour to Miles per Hour
1 kilometer per hour = 0.62137119 miles per hour. Multiply the number of kilometers per hour by 0.621371192237.
1 km/h = 0.6213711922 mph
Multiply the number of kilometers per hour by 0.621371192237.
Results are rounded for display. Double-check values for critical work.
Popular speed & velocity conversions
Kilometers per Hour to Miles per Hour table
| Kilometers per Hour | Miles per Hour |
|---|---|
| 1 km/h | 0.62137119 mph |
| 2 km/h | 1.2427424 mph |
| 3 km/h | 1.8641136 mph |
| 4 km/h | 2.4854848 mph |
| 5 km/h | 3.106856 mph |
| 10 km/h | 6.2137119 mph |
| 20 km/h | 12.427424 mph |
| 25 km/h | 15.53428 mph |
| 50 km/h | 31.06856 mph |
| 100 km/h | 62.137119 mph |
| 500 km/h | 310.6856 mph |
| 1000 km/h | 621.37119 mph |
Kilometers per Hour to Miles per Hour in your head
Multiply by 5, then divide by 8.
That lands within 0.6% of the exact value.
10 km/h → 6.25 mph in your head, 6.21371 mph exactly.
About these units
The kilometer per hour (km/h) is a metric unit of speed & velocity, equal to 0.27777778 meters per second.
The mile per hour (mph) is an imperial unit of speed & velocity, equal to 0.44704 meters per second.
Going the other way, 1 mile per hour = 1.609344 kilometers per hour. Speed limits, wind reports, boat logs and aviation all use different units for the same idea. Convert between metric, imperial, nautical and scientific speeds instantly.
Frequently asked
- How many miles per hour are in a kilometer per hour?
- 1 kilometer per hour = 0.62137119 miles per hour.
- How do you convert kilometers per hour to miles per hour?
- Multiply the number of kilometers per hour by 0.621371192237.
- What is 10 km/h in mph?
- 10 km/h = 6.2137119 mph.