| miles per hour | |
|---|---|
.jpg) Speedometer, indicating speed in miles per hour | |
| General information | |
| Unit system | Imperial, United States customary units |
| Unit of | speed |
| Symbol | mph |
| Conversions | |
| 1 mph in ... | ... is equal to ... |
| km/h | 1.609344 |
| m/s | 0.44704 |
Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom, the United States, and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.