**Full name:** mile/hour

**Plural form:** miles/hour

**Symbol:** mph

**Alternate spelling:** mi/h

**Category type:** speed

**Scale factor:** 0.44704

The SI derived unit for speed is the meter/second.

1 meter/second is equal to 2.23693629205 mile/hour.

Valid units must be of the **speed** type.

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Miles per hour is a unit of speed, expressing the number of international miles covered per hour. It is commonly abbreviated in everyday use in the United States, the United Kingdom, and elsewhere to mph or MPH, although mi/h is sometimes used in technical publications.

mile/hour to speed of sound [metal]

mile/hour to league/minute [statute]

mile/hour to yard/day

mile/hour to foot/minute

mile/hour to dekametre/hour

mile/hour to mile/day

mile/hour to furlong/second [survey]

mile/hour to kilometre/minute

mile/hour to inch/second