Miles to KM Calculator — Convert Miles to Kilometres

Use this free miles to km calculator to instantly convert any distance from miles to kilometres. Whether you’re planning a run, a road trip, or comparing distances between countries, get an accurate result in seconds.

Miles to KM Calculator

📏 Common Miles to KM Conversions

Miles	Kilometres

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How to Convert Miles to Kilometres

Enter your distance in miles and click Convert. The result shows in kilometres instantly along with metres and feet. Switch to the KM → Miles tab to convert in the other direction.

Miles to KM Formula

Kilometres = Miles × 1.60934

For example: 5 miles × 1.60934 = 8.047 kilometres

Common Running Distances in Kilometres

If you’re a runner used to miles, here are the key race distances converted:

1 mile = 1.609 km

5 miles = 8.047 km

10 miles = 16.093 km

Half marathon (13.1 miles) = 21.082 km

Marathon (26.2 miles) = 42.195 km

When Would You Need to Convert Miles to KM?

Miles are used in the United States, United Kingdom, and a handful of other countries. Most of the world uses kilometres. Common situations where you’d need to convert include planning international road trips, understanding race distances, reading foreign speed limits and road signs, and comparing distances on maps from different countries.