KM/H to MPH Converter
Convert km/h to mph instantly: 1 km/h = 0.621371 mph. Formula, examples (100, 120 km/h) and a km/h to mph chart for driving and running.
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How to use it
- Type a value in the kilometres per hour box.
- The result in miles per hour appears instantly.
- Type in the second box to convert the other way.
Formula
mph = km/h ÷ 1.609344. Type in either box — the conversion works both ways.
KM/H to MPH: chart
| Kilometres per hour (km/h) | Miles per hour (mph) |
|---|---|
| 10 km/h | 6.21 mph |
| 20 km/h | 12.43 mph |
| 30 km/h | 18.64 mph |
| 50 km/h | 31.07 mph |
| 60 km/h | 37.28 mph |
| 80 km/h | 49.71 mph |
| 90 km/h | 55.92 mph |
| 100 km/h | 62.14 mph |
| 110 km/h | 68.35 mph |
| 120 km/h | 74.56 mph |
| 130 km/h | 80.78 mph |
| 150 km/h | 93.21 mph |
| 200 km/h | 124.27 mph |
| 250 km/h | 155.34 mph |
| 300 km/h | 186.41 mph |
Frequently asked questions
How many mph is 1 km/h?
1 km/h is 0.621371 mph.
What is 100 km/h in mph?
100 km/h is 62.14 mph.
What is 120 km/h in mph?
120 km/h is 74.56 mph — the general motorway speed limit in Spain.
How do I estimate quickly?
Multiply by 0.6: 80 km/h ≈ 48 mph (exact: 49.71 mph).