## Kilometers per hour

This is a measurement of speed typically used in countries using the metric system for transport. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h.

Format

Accuracy

Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Note: For a pure decimal result please select 'decimal' from the options above the result.

This is a measurement of speed typically used in countries using the metric system for transport. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h.

Mach is a speed measurement based on the speed of sound. Since sound travels at different speeds in different conditions, the calculations here are given for 20°C in dry air at sea level. Mach is typically used in aviation and space exploration.

Kilometers per hour | Mach |
---|---|

0kph | 0.00Mach |

1kph | 0.00Mach |

2kph | 0.00Mach |

3kph | 0.00Mach |

4kph | 0.00Mach |

5kph | 0.00Mach |

6kph | 0.00Mach |

7kph | 0.01Mach |

8kph | 0.01Mach |

9kph | 0.01Mach |

10kph | 0.01Mach |

11kph | 0.01Mach |

12kph | 0.01Mach |

13kph | 0.01Mach |

14kph | 0.01Mach |

15kph | 0.01Mach |

16kph | 0.01Mach |

17kph | 0.01Mach |

18kph | 0.01Mach |

19kph | 0.02Mach |

Kilometers per hour | Mach |
---|---|

20kph | 0.02Mach |

21kph | 0.02Mach |

22kph | 0.02Mach |

23kph | 0.02Mach |

24kph | 0.02Mach |

25kph | 0.02Mach |

26kph | 0.02Mach |

27kph | 0.02Mach |

28kph | 0.02Mach |

29kph | 0.02Mach |

30kph | 0.02Mach |

31kph | 0.03Mach |

32kph | 0.03Mach |

33kph | 0.03Mach |

34kph | 0.03Mach |

35kph | 0.03Mach |

36kph | 0.03Mach |

37kph | 0.03Mach |

38kph | 0.03Mach |

39kph | 0.03Mach |

Kilometers per hour | Mach |
---|---|

40kph | 0.03Mach |

41kph | 0.03Mach |

42kph | 0.03Mach |

43kph | 0.04Mach |

44kph | 0.04Mach |

45kph | 0.04Mach |

46kph | 0.04Mach |

47kph | 0.04Mach |

48kph | 0.04Mach |

49kph | 0.04Mach |

50kph | 0.04Mach |

51kph | 0.04Mach |

52kph | 0.04Mach |

53kph | 0.04Mach |

54kph | 0.04Mach |

55kph | 0.04Mach |

56kph | 0.05Mach |

57kph | 0.05Mach |

58kph | 0.05Mach |

59kph | 0.05Mach |