# Miles Per Hour to Knots Conversion

Enter the speed in miles per hour below to get the value converted to knots.

**Results in Knots:**

## How to Convert Miles Per Hour to Knots

To convert a mile per hour measurement to a knot measurement, multiply the speed by the conversion ratio. One mile per hour is equal to 0.868976 knots, so use this simple formula to convert:

The speed in knots is equal to the miles per hour multiplied by 0.868976.

**For example,**here's how to convert 5 miles per hour to knots using the formula above.

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

## Miles Per Hour

Miles per hour are a measurement of speed expressing the distance travelled in miles in one hour.^{[1]}

The mile per hour is a US customary and imperial unit of speed. Miles per hour can be abbreviated as *mph*, and are also sometimes abbreviated as *mi/h* or *MPH*. For example, 1 mile per hour can be written as 1 mph, 1 mi/h, or 1 MPH.

Miles per hour can be expressed using the formula:

v_{mph} = d_{mi}t_{hr}

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

## Knots

One knot is equal to a speed of one nautical mile per hour,^{[2]} or one minute of latitude per hour.

Knots can be abbreviated as *kn*, and are also sometimes abbreviated as *kt*. For example, 1 knot can be written as 1 kn or 1 kt.

## Mile Per Hour to Knot Conversion Table

Miles Per Hour | Knots |
---|---|

1 mph | 0.868976 kn |

2 mph | 1.738 kn |

3 mph | 2.6069 kn |

4 mph | 3.4759 kn |

5 mph | 4.3449 kn |

6 mph | 5.2139 kn |

7 mph | 6.0828 kn |

8 mph | 6.9518 kn |

9 mph | 7.8208 kn |

10 mph | 8.6898 kn |

11 mph | 9.5587 kn |

12 mph | 10.43 kn |

13 mph | 11.3 kn |

14 mph | 12.17 kn |

15 mph | 13.03 kn |

16 mph | 13.9 kn |

17 mph | 14.77 kn |

18 mph | 15.64 kn |

19 mph | 16.51 kn |

20 mph | 17.38 kn |

21 mph | 18.25 kn |

22 mph | 19.12 kn |

23 mph | 19.99 kn |

24 mph | 20.86 kn |

25 mph | 21.72 kn |

26 mph | 22.59 kn |

27 mph | 23.46 kn |

28 mph | 24.33 kn |

29 mph | 25.2 kn |

30 mph | 26.07 kn |

31 mph | 26.94 kn |

32 mph | 27.81 kn |

33 mph | 28.68 kn |

34 mph | 29.55 kn |

35 mph | 30.41 kn |

36 mph | 31.28 kn |

37 mph | 32.15 kn |

38 mph | 33.02 kn |

39 mph | 33.89 kn |

40 mph | 34.76 kn |

## References

- Wikipedia, Miles per hour, https://en.wikipedia.org/wiki/Miles_per_hour
- NASA, Knots Versus Miles per Hour, https://www.grc.nasa.gov/WWW/K-12/WindTunnel/Activities/knots_vs_mph.html