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Miles To Kilometers Converter

Convert miles to kilometers, with the same distance in meters, feet and nautical miles.

What this tool does

Convert miles to kilometers, with the same distance in meters, feet and nautical miles. Type an amount in miles, choose the units, and the tool converts it to kilometers. It offers 5 length units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Mile, Kilometer, Meter, Foot, Nautical mile (international). Starts as Mile.
  • To: Choose one of the same 5 units as "From". Starts as Kilometer.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from miles to kilometers:

  • 1 mi = 1.609344 km
  • 5 mi = 8.04672 km
  • 10 mi = 16.09344 km
  • 50 mi = 80.4672 km
  • 100 mi = 160.9344 km

Multiply the number of miles by 1.609344 to get kilometers. Both units are exact definitions, so 1.609344 is the exact factor: 1 mi = 1.609344 km.

Sources: Mile: International yard and pound agreement, 1959. Kilometer: SI Brochure, 9th edition (2019, updated 2022), Table 7 (SI prefixes).

Limitations

  • Converts the unit of a length only. It does not work out a length from other measurements.
  • Uses international feet and miles, which are defined exactly in metric units.

FAQs

Q: How many kilometers are in one mile?
A: One mile is exactly 1.609344 km. Enter any value and the converter scales it for you.
Q: How do I convert kilometers to miles?
A: Choose kilometer in the From box and mile in the To box. One kilometer is about 0.621371 mi.
Q: Which mile is this?
A: The international statute mile, exactly 1.609344 kilometers. The older US survey mile differs by about two parts per million, which does not matter for travel distances.

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