Kilometer per hour conversions

speed conversions » kilometer per hour conversions
Convert kilometers per hour to
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The kilometer per hour conversion selector above selects the speed/velocity measurement unit to convert to starting from kilometers per hour (km/h). To make a conversion starting from a unit of speed other than kilometer per hour, simply click on the "Reset" button.

What is kilometer per hour?

The kilometre per hour (or kilometer per hour) is a unit of speed in the metric system equal to about 0.277778 meters per second (1 km/h = 0.277778 m/s), the derived unit of speed in the International System of Units (SI). It is also equal to approximately 0.621371 miles per hour (mph or mi/h), or 0.911344 feet per second (ft/s), or 10.936133 inches per second (in/s) or 0.539957 knots (kn).

The speed is the distance traveled by an object during a period of time. Thus, kilometers per hour (or kilometers/hour) show how many kilometers are traveled in one hour. The kilometer is a unit of length in the metric system while the hour is a unit of time.

Kilometer per hour is widely used around the world in sports, road signs, and cars and aircrafts speedometers.

Symbol:

km/h

Plural:

kilometers per hour

aka:

kilometre/hour, kilometer per hour (plural: kilometers per hour, US spelling), kilometer/hour (plural: kilometers/hour, US spelling)