kilometers per hour to miles per hour
Convert kilometer per hour to mile per hour — instant, free, with the formula shown.
How to convert kilometer per hour to mile per hour
To convert kilometer per hour to mile per hour, multiply by 0.62137119:
For example, 10 km/h × 0.621371 = 6.2137 mph.
km/h to mph conversion table
| kilometers per hour (km/h) | miles per hour (mph) |
|---|---|
| 1 km/h | 0.6214 mph |
| 2 km/h | 1.2427 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
| 250 km/h | 155.3428 mph |
| 500 km/h | 310.6856 mph |
| 1000 km/h | 621.3712 mph |
Other kilometer per hour conversions
Convert to mile per hour from another unit
km/h to mph — frequently asked
How many miles per hour are in 1 kilometer per hour?
1 kilometer per hour = 0.6214 miles per hour (km/h × 0.621371 = mph).
What is the formula to convert kilometer per hour to mile per hour?
Multiply your kilometer per hour value by 0.62137119 to get mile per hour.
How do I convert 10 kilometers per hour to miles per hour?
10 km/h = 6.2137 mph. For 100 km/h the answer is 62.1371 mph. Use the calculator on this page for any other value.
When to convert kilometer per hour to mile per hour
Speed conversion — common questions
What is 60 mph in km/h?
60 mph × 1.60934 ≈ 96.56 km/h.
Why are nautical and aviation speeds in knots?
1 knot = 1 nautical mile per hour, and the nautical mile is based on Earth's geometry (1/60 of one degree of latitude), which makes navigation calculations simpler.
How fast is Mach 1?
Mach 1 is the speed of sound, ≈ 343 m/s at sea level at 20 °C. It varies with temperature and altitude.