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Miles per hour

From Wikipedia, the free encyclopedia

This article is about the unit of speed. For the comic book, see MPH (comics). For other uses, see MPH.
miles per hour
Speedometer, indicating speed in miles per hour
General information
Unit systemImperial, United States customary units
Unit ofspeed
Symbolmph
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.

Usage

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Speed limit units on traffic signs around the world:
  Kilometres per hour (km/h)
  Miles per hour (mph)
  Both
  No speed limit units
50 mph speed limit sign in the United Kingdom
65 mph speed limit sign in the United States

Road traffic

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Speed limits and road traffic speeds are given in miles per hour in the following jurisdictions: