Miles per hour

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Template:Short description Template:Use dmy dates Script error: No such module "about". Template:Infobox unit 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

File:World Map of Speed Limit Units on Traffic Signs.svg
Speed limit units on traffic signs around the world: <templatestyles src="Legend/styles.css" />
  Kilometres per hour (km/h)
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  Miles per hour (mph)
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  Both
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  none known
File:UK 50 mph speed limit sign.jpg
50 mph speed limit sign in the United Kingdom
File:2014-08-19 11 59 11 Speed limit 65 miles per hour sign along northbound Nevada State Route 225 (Mountain City Highway) about 10.9 miles north of Nevada State Route 535 (Idaho Street) in Elko County, Nevada.JPG
65 mph speed limit sign in the United States

Road traffic

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

Rail networks

Miles per hour is the unit used on the US, Canadian and Irish rail systems.[22][23][24] Miles per hour is also used on British rail systems, excluding trams, some light metro systems, the Channel Tunnel and High Speed 1.[25]

Nautical and aeronautical usage

Nautical and aeronautical applications favour the knot as a common unit of speed. (One knot is one nautical mile per hour, with a nautical mile being exactly 1,852 metres or about 6,076 feet.)

Other usage

In some countries mph may be used to express the speed of delivery of a ball in sporting events such as cricket, tennis and baseball.

Conversions

1 mph = Template:Val (exactly)
= Template:Val (exactly)

Template:Speed conversions

See also

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References

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Template:Imperial units Template:United States Customary Units

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