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  1. The kilometre per hour (SI symbol: km/h; non-SI abbreviations: kph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour. History

  2. Kilometer/hour. Definition: The unit kilometers per hour (symbol: km/h) is a unit of speed expressing the number of kilometers traveled in one hour. History/origin: The unit of kilometers per hour is based on the meter, which was formally defined in 1799. According to the Oxford English Dictionary, the term kilometer first came into use in 1810.

  3. Kilometers per hour is a unit of Speed or Velocity in the Metric System. It measures the number of kilometers traveled in an hour. The symbol for kilometers per hour is km/h and the International spelling for this unit is kilometres per hour. Select one of the kilometers per hour conversions below: The following tables provide a summary of the ...

  4. A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour. Common abbreviations: km/h, kmph, km/hr, km/hour

  5. Jul 15, 2024 · Kilometer Per Hour Unit. 1 kilometer per hour (km/h) = 27.7778 centimeters per second (cm/s) approximately. This conversion can be derived from the fact that 1 kilometer equals 100,000 centimeters and 1 hour equals 3600 seconds. Therefore: 1 km/h=100,000 cm/3600 s=27.7778 cm/s. So, in CGS units, 1 kilometer per hour is approximately equal to 27 ...

  6. The following is a list of definitions relating to conversions between kilometers per hour and miles per hour. What is kilometers per hour (km/h)? Kilometers per hour is a unit of Speed or Velocity in the Metric System. It measures the number of kilometers traveled in an hour. The symbol for kilometers per hour is km/h and the International ...

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  8. Kilometres per hour is a unit of measurement, which measures speed or velocity. The unit symbol is km/h or km·h−1. By definition, an object travelling at a speed of 1 km/h in a straight line for 1 hour moves 1 kilometre. The unit is the most commonly used unit of speed worldwide, more common than the SI unit of speed, metres per second.

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