# Miles To Km Converter (Miles To Kilometers)

Enter the length in miles below to get the value converted to kilometers.

**Results in Kilometers:**

## How to Convert Miles to Kilometers

The fastest way to convert miles to km (kilometers) is to use this simple formula:

The distance in kilometers is equal to the distance in miles multiplied by 1.609344.
Since one mile is equal to 1.609344 kilometers^{[1]}, that's the conversion ratio used in the formula.

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

5 mi = (5 × 1.609344) = 8.04672 km

Miles and kilometers are both units used to measure distance or length. Keep reading to learn more about each unit of measure.

## What is a Mile?

The mile is a linear measurement of length equal to exactly 1,609.344 meters. One mile is also equal to 5,280 feet or 1,760 yards.

The mile is a US customary and imperial unit of length. Miles can be abbreviated as *mi*, and are also sometimes abbreviated as *m*. For example, 1 mile can be written as 1 mi or 1 m.

## What is a Kilometer?

One kilometer is equal to 1,000 meters, which are defined as the distance light travels in a vacuum in a ^{1}/_{299,792,458} second time interval.^{[2]}

The kilometer, or kilometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "kilo" is the prefix for 10^{3}. Kilometers can be abbreviated as *km*, for example 1 kilometer can be written as 1 km.

## Mile Measurements and Equivalent Kilometer Conversions

Miles | Kilometers |
---|---|

1 mi | 1.6093 km |

2 mi | 3.2187 km |

3 mi | 4.828 km |

4 mi | 6.4374 km |

5 mi | 8.0467 km |

6 mi | 9.6561 km |

7 mi | 11.27 km |

8 mi | 12.87 km |

9 mi | 14.48 km |

10 mi | 16.09 km |

11 mi | 17.7 km |

12 mi | 19.31 km |

13 mi | 20.92 km |

14 mi | 22.53 km |

15 mi | 24.14 km |

16 mi | 25.75 km |

17 mi | 27.36 km |

18 mi | 28.97 km |

19 mi | 30.58 km |

20 mi | 32.19 km |

21 mi | 33.8 km |

22 mi | 35.41 km |

23 mi | 37.01 km |

24 mi | 38.62 km |

25 mi | 40.23 km |

26 mi | 41.84 km |

27 mi | 43.45 km |

28 mi | 45.06 km |

29 mi | 46.67 km |

30 mi | 48.28 km |

31 mi | 49.89 km |

32 mi | 51.5 km |

33 mi | 53.11 km |

34 mi | 54.72 km |

35 mi | 56.33 km |

36 mi | 57.94 km |

37 mi | 59.55 km |

38 mi | 61.16 km |

39 mi | 62.76 km |

40 mi | 64.37 km |

## References

- Kenneth Butcher, Linda Crown, & Elizabeth J. Gentry, The International System of Units (SI) – Conversion Factors for General Use,
*National Institute of Standards and Technology*, https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication1038.pdf - Ambler Thompson and Barry N. Taylor, Guide for the Use of the International System of Units (SI),
*National Institute of Standards and Technology*, https://physics.nist.gov/cuu/pdf/sp811.pdf

## More Mile Length Conversions

**US Customary & Imperial Units**

- Convert to Yards
- 1 mi is equal to 1,760 yards
- Convert to Feet
- 1 mi is equal to 5,280 feet
- Convert to Inches
- 1 mi is equal to 63,360 inches

**SI Units**

- Convert to Meters
- 1 mi is equal to 1,609.34 meters
- Convert to Centimeters
- 1 mi is equal to 160,934.4 centimeters
- Convert to Millimeters
- 1 mi is equal to 1,609,344 millimeters
- Convert to Micrometers
- 1 mi is equal to 1,609,344,000 micrometers
- Convert to Nanometers
- 1 mi is equal to 1,609,344,000,000 nanometers