Miles per hour to Kilometers per hour
Convert Miles per hour to Kilometers per hour with an exact factor. One mile per hour equals 1.609344 Kilometers per hour.
Result1.609344
How to convert Miles per hour to Kilometers per hour
The converter above changes Miles per hour into Kilometers per hour instantly. As a reference point, one mile per hour corresponds to 1.609344 Kilometers per hour, and one kilometer per hour corresponds to 0.62137119 Miles per hour. Use the table below for common values.
Miles per hour × 1.609344 = Kilometers per hour
For example, 5 Miles per hour = 8.04672 Kilometers per hour.
About the units
- Miles per hour (mph) — Miles per hour, used in the US and UK.
- Kilometers per hour (km/h) — Kilometres per hour, the common road-speed unit.
Miles per hour to Kilometers per hour conversion table
| Miles per hour | Kilometers per hour |
|---|---|
| 1 mph | 1.609344 km/h |
| 5 mph | 8.04672 km/h |
| 10 mph | 16.09344 km/h |
| 20 mph | 32.18688 km/h |
| 30 mph | 48.28032 km/h |
| 40 mph | 64.37376 km/h |
| 50 mph | 80.4672 km/h |
| 60 mph | 96.56064 km/h |
| 70 mph | 112.65408 km/h |
| 80 mph | 128.74752 km/h |
| 100 mph | 160.9344 km/h |
| 120 mph | 193.12128 km/h |
Kilometers per hour to Miles per hour conversion table
| Kilometers per hour | Miles per hour |
|---|---|
| 1 km/h | 0.62137119 mph |
| 5 km/h | 3.10685596 mph |
| 10 km/h | 6.21371192 mph |
| 20 km/h | 12.42742384 mph |
| 30 km/h | 18.64113577 mph |
| 40 km/h | 24.85484769 mph |
| 50 km/h | 31.06855961 mph |
| 60 km/h | 37.28227153 mph |
| 70 km/h | 43.49598346 mph |
| 80 km/h | 49.70969538 mph |
| 100 km/h | 62.13711922 mph |
| 120 km/h | 74.56454307 mph |
Frequently asked questions
How many Kilometers per hour is one mile per hour?
One mile per hour is 1.609344 Kilometers per hour.
Are these speed conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Miles per hour to Kilometers per hour?
Multiply the number of Miles per hour by 1.609344. To convert back, multiply Kilometers per hour by 0.62137119.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026