Instantly convert miles per hour (mph) to kilometers per hour (km/h). Bidirectional, accurate, and free.
To convert miles per hour to kilometers per hour, use the formula kilometers per hour = miles per hour × 1.6093. For example, 2 miles per hour equals 3.2187 kilometers per hour. Type any number into the calculator above and the result appears instantly — you can also type into the kilometers per hour box to convert the other way.
| Miles per hour | Kilometers per hour |
|---|---|
| 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 |
| 60 mph | 96.5606 km/h |
| 70 mph | 112.65 km/h |
| 80 mph | 128.75 km/h |
There are 1.6093 kilometers per hour in one mile per hour. To convert any value, apply the formula kilometers per hour = miles per hour × 1.6093.
The formula is kilometers per hour = miles per hour × 1.6093. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.