Convert Mile per Hour to Kilometer per Hour
1 mile per hour equals 1.609344 kilometers per hour. Enter a value below to convert instantly.
Formula
Multiply the number of miles per hour by 1.609344 to get kilometers per hour.
Step by step
- Start with 1 mph.
- Multiply by the conversion factor 1.609344.
- 1 × 1.609344 = 1.609344 km/h.
Mile per Hour to Kilometer per Hour conversion table
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 1 | 1.609344 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 20 | 32.18688 |
| 30 | 48.28032 |
| 40 | 64.37376 |
| 50 | 80.4672 |
| 60 | 96.56064 |
| 80 | 128.74752 |
| 100 | 160.9344 |
About the mile per hour
The mile per hour (mph) is a Imperial unit of speed.
About the kilometer per hour
The kilometer per hour (km/h) is a Metric unit of speed.
Where this conversion is used
Converting miles per hour to kilometers per hour comes up when driving, running, cycling, aviation, and weather reports.
Need the other direction? Convert kilometer per hour to mile per hour →
Related conversions
Frequently asked questions
How many kilometers per hour are in a mile per hour?
One mile per hour equals 1.609344 kilometers per hour.
How do you convert miles per hour to kilometers per hour?
Multiply the number of miles per hour by 1.609344 to get kilometers per hour.
What is 1 kilometer per hour in miles per hour?
One kilometer per hour equals 0.62137119 miles per hour.
When would I convert miles per hour to kilometers per hour?
This conversion is common when driving, running, cycling, aviation, and weather reports.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.