Miles per hour to Kilometers per hour Converter
Type a value in miles per hour to get it in kilometers per hour, and see the reverse conversion.
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Miles per hour to Kilometers per hour Converter by TheCalcTools
How the Miles per hour to Kilometers per hour Converter works
Multiply miles per hour by 1.609344 to get kilometres per hour. A 70 mph motorway limit is about 113 km/h.
To convert miles per hour to kilometers per hour, multiply by 1.609344. The calculator shows the result to 6 significant figures; the conversion factor itself is exact by definition.
Quick estimate in your head: multiply by 1.6.
The formula
Worked example
Using the default values shown in the calculator:
| Value in miles per hour (mph) | 60 |
|---|
- 60 mph × 1.609344 = 96.5606 km/h.
Result:
| Kilometers per hour (km/h) | 96.5606 |
|---|---|
| 1 mph in km/h | 1.60934 |
| Your number read as km/h, in mph | 37.2823 |
| Metres per second (m/s) | 26.8224 |
| Knots (kn) | 52.1386 |
Conversion table
| mph | km/h |
|---|---|
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 30 mph | 48.2803 km/h |
| 40 mph | 64.3738 km/h |
| 50 mph | 80.4672 km/h |
| 55 mph | 88.5139 km/h |
| 60 mph | 96.5606 km/h |
| 65 mph | 104.607 km/h |
| 70 mph | 112.654 km/h |
| 80 mph | 128.748 km/h |
| 100 mph | 160.934 km/h |
Frequently asked questions
What is 1 mile per hour in kilometers per hour?
1 mile per hour (mph) equals 1.60934 km/h.
Sources and further reading
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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.