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Miles to Km Converter

Convert miles to kilometers instantly. Free online converter with conversion table, marathon reference, and 100% client-side processing.

100% client-side. Your data never leaves your browser.

1.609344
1 Mile = 1.609344 Kilometers

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Convert Miles to Kilometers

Enter a distance in miles to convert it to kilometers. The conversion factor is approximately 1.609. Miles are used for road distances in the US and UK. Kilometers are used in most other countries and for running events.

Common Distance References

MilesKilometersDescription
1 mi1.61 kmStandard conversion
5 mi8.05 kmPopular running distance
10 mi16.09 km10K race equivalent
26.2 mi42.20 kmMarathon distance
100 mi160.93 kmUltra-marathon

How to Use

  1. The tool opens with 1 mile selected
  2. Type any mile value in the left input
  3. Read the kilometer result on the right
  4. Click the swap button to convert kilometers to miles

For more conversions, see the full Unit Converter or try Meters to Feet.