Miles per hour
Miles per hour is a unit of measurement. It measures speed. It is the number of miles moved in an hour.
Miles per hour is the unit used for speed limits on roads in the United Kingdom and the United States. It is normally abbreviated in everyday use to mph or MPH. In technical publications it is sometimes abbreviated as mi/h.
The SI unit for velocity (speed, with a direction of movement) is m·s−1 (metres per second).
Speed limit units on traffic signs around the world: Kilometers per hour (km/h) Miles per hour (mph) Both No speed limit units
Conversions
1 mph is equal to:
- 0.44704 m·s−1, the SI derived unit
- 1.609344 km·h−1
- 22/15 =1.4667 feet per second
- approx. 0.868976 knots
Miles Per Hour Media
Speed limit units on traffic signs around the world:* Kilometres per hour (km/h)* Miles per hour (mph)* Both* none known
50 mph speed limit sign in the United Kingdom
65 mph speed limit sign in the United States
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