MPH to KM/H Converter
Convert mph to km/h instantly: 1 mph = 1.609344 km/h. Formula, speed-limit examples (30, 60, 70 mph) and an mph to km/h chart.
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How to use it
- Type a value in the miles per hour box.
- The result in kilometres per hour appears instantly.
- Type in the second box to convert the other way.
Formula
km/h = mph × 1.609344. Type in either box — the conversion works both ways.
MPH to KM/H: chart
| Miles per hour (mph) | Kilometres per hour (km/h) |
|---|---|
| 10 mph | 16.09 km/h |
| 20 mph | 32.19 km/h |
| 25 mph | 40.23 km/h |
| 30 mph | 48.28 km/h |
| 40 mph | 64.37 km/h |
| 50 mph | 80.47 km/h |
| 55 mph | 88.51 km/h |
| 60 mph | 96.56 km/h |
| 65 mph | 104.61 km/h |
| 70 mph | 112.65 km/h |
| 80 mph | 128.75 km/h |
| 100 mph | 160.93 km/h |
| 120 mph | 193.12 km/h |
| 150 mph | 241.4 km/h |
| 200 mph | 321.87 km/h |
Frequently asked questions
How many km/h is 1 mph?
Exactly 1.609344 km/h.
What is 70 mph in km/h?
70 mph is 112.65 km/h — the national speed limit on UK motorways.
What is 60 mph in km/h?
96.56 km/h. Car “0–60 mph” times are roughly equal to 0–97 km/h.
How do I estimate quickly?
Multiply by 1.6: 50 mph ≈ 80 km/h (exact: 80.47 km/h).