# Convert Kilometers Per Hour to Speed Of Sound

Enter the speed in kilometers per hour below to get the value converted to speed of sound.

**Results in Speed Of Sound:**

## How to Convert Kilometers Per Hour to Speed Of Sound

To convert a kilometer per hour measurement to a speed of sound measurement, multiply the speed by the conversion ratio. One kilometer per hour is equal to 0.00081 speed of sound, so use this simple formula to convert:

The speed in speed of sound is equal to the kilometers per hour multiplied by 0.00081.

**For example,**here's how to convert 5 kilometers per hour to speed of sound using the formula above.

Kilometers per hour and speed of sound are both units used to measure speed. Keep reading to learn more about each unit of measure.

## Kilometers Per Hour

Kilometers per hour are a measurement of speed expressing the distance travelled in kilometers in one hour.

The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. Kilometers per hour can be abbreviated as *km/h*, and are also sometimes abbreviated as *kph*. For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.

Kilometers per hour can be expressed using the formula:

v_{km/s} = d_{km}t_{hr}

The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours.

## Speed Of Sound

The speed of sound is the distance a sound wave travels through an elastic medium. The speed of sound through air at 20 °C is equal to 343 meters per second, or roughly 767 miles per hour.

## Kilometer Per Hour Measurements and Equivalent Speed Of Sound Conversions

Kilometers Per Hour | Speed Of Sound |
---|---|

1 km/h | 0.00081 |

2 km/h | 0.00162 |

3 km/h | 0.00243 |

4 km/h | 0.003239 |

5 km/h | 0.004049 |

6 km/h | 0.004859 |

7 km/h | 0.005669 |

8 km/h | 0.006479 |

9 km/h | 0.007289 |

10 km/h | 0.008098 |

11 km/h | 0.008908 |

12 km/h | 0.009718 |

13 km/h | 0.010528 |

14 km/h | 0.011338 |

15 km/h | 0.012148 |

16 km/h | 0.012958 |

17 km/h | 0.013767 |

18 km/h | 0.014577 |

19 km/h | 0.015387 |

20 km/h | 0.016197 |

21 km/h | 0.017007 |

22 km/h | 0.017817 |

23 km/h | 0.018626 |

24 km/h | 0.019436 |

25 km/h | 0.020246 |

26 km/h | 0.021056 |

27 km/h | 0.021866 |

28 km/h | 0.022676 |

29 km/h | 0.023486 |

30 km/h | 0.024295 |

31 km/h | 0.025105 |

32 km/h | 0.025915 |

33 km/h | 0.026725 |

34 km/h | 0.027535 |

35 km/h | 0.028345 |

36 km/h | 0.029155 |

37 km/h | 0.029964 |

38 km/h | 0.030774 |

39 km/h | 0.031584 |

40 km/h | 0.032394 |

## More Kilometer Per Hour Speed Conversions

- Convert to Knots
- 1 km/h is equal to 0.539957 knots
- Convert to Mach
- 1 km/h is equal to Mach 0.00081
- Convert to Speed Of Light
- 1 km/h is equal to 9.2657E-10 speed of light
- Convert to Miles Per Hour
- 1 km/h is equal to 0.621371 miles per hour
- Convert to Feet Per Second
- 1 km/h is equal to 0.911344 feet per second
- Convert to Kilometers Per Second
- 1 km/h is equal to 0.000278 kilometers per second
- Convert to Meters Per Second
- 1 km/h is equal to 0.277778 meters per second
- Convert to Centimeters Per Second
- 1 km/h is equal to 27.777778 centimeters per second

## Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

## Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

### Here is a list of some of the common metric prefixes:

- “kilo” – 1,000x larger
- “hecto” – 100x larger
- “deca” – 10x larger
- “deci” – 10x smaller
- “centi” – 100x smaller
- “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”

The u in Until refers to the base unit.