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Miles to Kilometers Converter

Enter a distance, pick a direction and get the result in miles or kilometers. The factor used is shown with the result.

Numbers only. For example 10 miles or 5 kilometers.

Conversion direction

This result is an estimate only. Double-check important figures before relying on them.

How it is calculated

  • Miles to kilometers: multiply by 1.609344
  • Kilometers to miles: divide by 1.609344 (about 0.621371)

The factor is exact. For fuel use over a distance, try the fuel cost calculator. For other lengths, see the feet to meters converter.

Worked example

  • 10 miles × 1.609344 = 16.0934 km
  • 100 km ÷ 1.609344 = 62.1371 miles

Why your number may differ

The result is shown to four decimal places, so a rounded figure may differ slightly from other tools. Road signs in the UK and US show miles, while Malaysia uses kilometers.

Frequently asked questions

How many kilometers are in a mile?

One mile is exactly 1.609344 kilometers.

How do I convert kilometers to miles?

Divide the kilometers by 1.609344, or multiply by about 0.621371. As a quick guide, 100 km is about 62 miles.

Is the factor exact?

Yes. Since 1959 the international mile has been defined as exactly 1,609.344 meters.

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