# Mile per hour conversions

speed conversions » mile per hour conversionsThe mile per hour conversion selector selects the speed/velocity measurement unit to convert to starting from miles per hour (mph). To make a conversion starting from a unit of speed other than mile per hour, simply click on the "Reset" button.

## What is mile per hour?

The **mile per hour** (or **mile/hour**) is a unit of speed in the Imperial and US customary systems of units equal to 0.44704 meters per second (1 mph = 0.44704 m/s), the derived unit of speed in the International System of Units (SI). It is also equal to approximately 1.609344 kilometers per hour (km per h), or 17.6 inches per second (in/s), or 1.466667 feet per second (ft/s) or 0.868976 knots (kn).

The speed is the distance traveled by an object during a period of time. Thus, miles per hour (or miles/hour) show how many miles are traveled in one hour. The mile is a unit of length in the Imperial / US customary system of units while the hour is a unit of time.

Mile per hour is commonly used in the United States and the United Kingdom in sports, road signs, and cars and aircrafts speedometers.

*Symbol:*

mph

*Plural:*

miles per hour

## Mile per hour conversions: quick links

A list with conversions from miles per hour to other (metric, imperial, or customary) speed and velocity measurement units is displayed below.

- mile per hour to centimeter per second (mph to cm/s)
- mile per hour to foot per hour (mph to ft/h)
- mile per hour to foot per minute (mph to ft/min)
- mile per hour to foot per second (mph to ft/s)
- mile per hour to inch per hour (mph to in/h)
- mile per hour to inch per minute (mph to in/min)
- mile per hour to inch per second (mph to in/s)
- mile per hour to kilometer per hour (mph to km/h)
- mile per hour to kilometer per minute (mph to km/min)
- mile per hour to kilometer per second (mph to km/s)
- mile per hour to knot (mph to kn)
- mile per hour to meter per hour (mph to m/h)
- mile per hour to meter per minute (mph to m/min)
- mile per hour to meter per second (mph to m/s)
- mile per hour to micrometer per second (mph to μm/s)
- mile per hour to mile per minute (mph to mpm)
- mile per hour to mile per second (mph to mps)
- mile per hour to millimeter per second (mph to mm/s)
- mile per hour to nautical mile per day (mph to nmi/d)
- mile per hour to nautical mile per hour (mph to nmi/h)
- mile per hour to speed of light (mph to c)
- mile per hour to speed of sound
- mile per hour to walking speed