# Kilometers per Second to Speed of Sound Converter

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

**Results in Speed of Sound:**

Do you want to convert speed of sound to kilometers per second?

## How to Convert Kilometers per Second to Speed of Sound

To convert a measurement in kilometers per second to a measurement in speed of sound, multiply the speed by the following conversion ratio: 2.915452 speed of sound/kilometer per second.

Since one kilometer per second is equal to 2.915452 speed of sound, you can use this simple formula to convert:

speed of sound = kilometers per second × 2.915452

The speed in speed of sound is equal to the speed in kilometers per second multiplied by 2.915452.

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

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

## What Are Kilometers per Second?

Kilometers per second are a measurement of speed expressing the distance traveled in kilometers in one second.

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

In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units.^{[1]} For example, km/s is expressing a change in length or distance relative to a change in time.

Kilometers per second can be expressed using the formula:

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

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.

Learn more about kilometers per second.

## What Is the 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,^{[2]} or roughly 767 miles per hour.

Speed of sound can be abbreviated as *sound*; for example, 1 speed of sound can be written as 1 sound.

Learn more about the speed of sound.

## Kilometer per Second to Speed of Sound Conversion Table

Kilometers Per Second | Speed Of Sound |
---|---|

1 km/s | 2.9155 sound |

2 km/s | 5.8309 sound |

3 km/s | 8.7464 sound |

4 km/s | 11.66 sound |

5 km/s | 14.58 sound |

6 km/s | 17.49 sound |

7 km/s | 20.41 sound |

8 km/s | 23.32 sound |

9 km/s | 26.24 sound |

10 km/s | 29.15 sound |

11 km/s | 32.07 sound |

12 km/s | 34.99 sound |

13 km/s | 37.9 sound |

14 km/s | 40.82 sound |

15 km/s | 43.73 sound |

16 km/s | 46.65 sound |

17 km/s | 49.56 sound |

18 km/s | 52.48 sound |

19 km/s | 55.39 sound |

20 km/s | 58.31 sound |

21 km/s | 61.22 sound |

22 km/s | 64.14 sound |

23 km/s | 67.06 sound |

24 km/s | 69.97 sound |

25 km/s | 72.89 sound |

26 km/s | 75.8 sound |

27 km/s | 78.72 sound |

28 km/s | 81.63 sound |

29 km/s | 84.55 sound |

30 km/s | 87.46 sound |

31 km/s | 90.38 sound |

32 km/s | 93.29 sound |

33 km/s | 96.21 sound |

34 km/s | 99.13 sound |

35 km/s | 102.04 sound |

36 km/s | 104.96 sound |

37 km/s | 107.87 sound |

38 km/s | 110.79 sound |

39 km/s | 113.7 sound |

40 km/s | 116.62 sound |

## References

- National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using
- CK-12, Speed of Sound, https://www.ck12.org/physics/speed-of-sound/lesson/Speed-of-Sound-MS-PS/

## More Kilometer per Second & Speed of Sound Conversions

- kilometers per second to knots
- kilometers per second to Mach number
- kilometers per second to speed of light
- kilometers per second to miles per hour
- kilometers per second to feet per second
- kilometers per second to kilometers per hour
- kilometers per second to meters per second
- kilometers per second to centimeters per second
- knots to speed of sound
- Mach number to speed of sound
- speed of light to speed of sound
- miles per hour to speed of sound
- feet per second to speed of sound
- kilometers per hour to speed of sound
- meters per second to speed of sound
- centimeters per second to speed of sound