Speed

What is a Mile per Hour? (mph)

Definition

A mile per hour (symbol: mph) is a unit of speed expressing the number of miles traveled in one hour. It is the standard unit for speed limits and vehicle speeds in the United States and United Kingdom. It is also used for wind speeds and some sports contexts in those countries.

Common Uses

  • › Road speed limits in US and UK
  • › Vehicle speedometers in US and UK
  • › Wind speed in US weather forecasts
  • › Baseball pitch speed

Converters

MPH to KPH →

Key Facts

  • Symbol
    mph
  • Category
    Speed
  • 1 mph ≈ 1.609 km/h
  • 1 mph ≈ 0.447 m/s
  • 60 mph ≈ 96.56 km/h
  • 100 mph ≈ 160.93 km/h

Related Terms

About the Mile per Hour

A mile per hour (symbol: mph) is a unit of speed expressing the number of miles traveled in one hour. It is the standard unit for speed limits and vehicle speeds in the United States and United Kingdom. It is also used for wind speeds and some sports contexts in those countries.

Equivalents and conversions

  • 1 mph ≈ 1.609 km/h
  • 1 mph ≈ 0.447 m/s
  • 60 mph ≈ 96.56 km/h
  • 100 mph ≈ 160.93 km/h

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