Online calculators to convert miles to kilometers (mi to km) and kilometers to miles (km to mi) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Length units.

Enter your value in one of the conversion calculators below to **convert miles to km ** or **convert km to miles**.

Let's take a closer look at the conversion formulas so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from miles to km is:

km = mi x 1.609344

The formula to convert from km to miles is:

mi = km x 0.621371192

Next, let's look at some examples showing the work and calculations that are involved in converting from miles to kilometers (mi to km) or converting from kilometers to miles (km to mi).

Task: Convert 5 miles to kilometers (show work)Formula:mi x 1.609344 = kmCalculations:5 mi x 1.609344 = 8.04672 kmResult:5 mi is equal to 8.04672 km

Task: Convert 15 kilometers to miles (show work)Formula:km x 0.621371192 = miCalculations:15 km x 0.621371192 = 9.32056788 miResult:15 km is equal to 9.32056788 mi

For quick reference purposes, below are conversion tables that you can use to convert from miles to km, and km to miles.

miles (mi) | kilometers (km) |
---|---|

1 miles | 1.609344 km |

2 miles | 3.218688 km |

3 miles | 4.828032 km |

4 miles | 6.437376 km |

5 miles | 8.04672 km |

6 miles | 9.656064 km |

7 miles | 11.265408 km |

8 miles | 12.874752 km |

9 miles | 14.484096 km |

10 miles | 16.09344 km |

20 miles | 32.18688 km |

30 miles | 48.28032 km |

40 miles | 64.37376 km |

50 miles | 80.4672 km |

75 miles | 120.7008 km |

100 miles | 160.9344 km |

250 miles | 402.336 km |

500 miles | 804.672 km |

750 miles | 1,207.008 km |

1,000 miles | 1,609.344 km |

2,500 miles | 4,023.36 km |

5,000 miles | 8,046.72 km |

7,500 miles | 12,070.08 km |

10,000 miles | 16,093.44 km |

25,000 miles | 40,233.6 km |

50,000 miles | 80,467.2 km |

75,000 miles | 120,700.8 km |

100,000 miles | 160,934.4 km |

250,000 miles | 402,336 km |

kilometers (km) | miles (mi) |
---|---|

1 km | 0.621371192 miles |

2 km | 1.242742384 miles |

3 km | 1.864113576 miles |

4 km | 2.485484768 miles |

5 km | 3.10685596 miles |

6 km | 3.728227152 miles |

7 km | 4.349598344 miles |

8 km | 4.970969536 miles |

9 km | 5.592340728 miles |

10 km | 6.21371192 miles |

20 km | 12.42742384 miles |

30 km | 18.64113576 miles |

40 km | 24.85484768 miles |

50 km | 31.0685596 miles |

75 km | 46.6028394 miles |

100 km | 62.1371192 miles |

250 km | 155.342798 miles |

500 km | 310.685596 miles |

750 km | 466.028394 miles |

1,000 km | 621.371192 miles |

2,500 km | 1,553.42798 miles |

5,000 km | 3,106.85596 miles |

7,500 km | 4,660.28394 miles |

10,000 km | 6,213.71192 miles |

25,000 km | 15,534.2798 miles |

50,000 km | 31,068.5596 miles |

75,000 km | 46,602.8394 miles |

100,000 km | 62,137.1192 miles |

250,000 km | 155,342.798 miles |

The following is a list of definitions relating to conversions between miles and kilometers.

A mile is a unit of length in both US Customary Units as well as the Imperial System. The symbol for mile is mi. There are 1,760 yards in a mile or 5,280 feet in a mile.

A kilometer is a unit of length in the Metric System. The symbol for kilometer is km. There are 1,000 meters in a kilometer. The International spelling is kilometre.

There are 0.621371192 miles in a kilometer.

There are 1.609344 kilometers in a mile.

This table provides a summary of the Length units within their respective measurement systems.

Unit | Symbol | Measurement System | Description |
---|---|---|---|

inches | in or " | US Customary Units/Imperial System | |

feet | ft or ' | US Customary Units/Imperial System | 1 foot = 12 inches |

yards | yd | US Customary Units/Imperial System | 1 yard = 3 feet |

miles | mi | US Customary Units/Imperial System | 1 mile = 1760 yards or 5280 feet |

millimeter | mm | Metric System | 1000 mm = 1 m |

centimeter | cm | Metric System | 100 cm = 1 m, 1 cm = 10 mm |

decimeter | dm | Metric System | 10 dm = 1 m, 1 dm = 10 cm |

meter | m | Metric System | 1 m = 1000 mm, 100 cm, 10 dm |

kilometer | km | Metric System | 1 km = 1000 m |

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