How many kilometers are in a mile?

One mile equals exactly 1.609344 kilometers. This is the internationally recognized conversion factor.

How do I convert a marathon distance to km?

A marathon is 26.2 miles, which equals 42.195 kilometers (26.2 × 1.609344 = 42.165 km, officially rounded to 42.195 km).

Why do some countries use miles?

The mile originated from the Roman 'mille passus' (thousand paces). The US and a few other countries retained this system, while most of the world adopted the metric system.

Miles to Kilometers Converter

Reverse: km → mi

Convert miles to kilometers instantly. Free online miles to km calculator with accurate conversion results.

Common Conversions

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About Mile to Kilometer Conversion

Our free miles to kilometers converter helps you quickly convert distances from imperial (miles) to metric (kilometers) measurements. Perfect for travelers, runners, and anyone working with international distance measurements.

Conversion Formula

1 mile equals exactly 1.609344 kilometers. To convert miles to kilometers, multiply the distance in miles by 1.609344.

Common Uses

Converting road distances when traveling to countries using the metric system
Understanding international running and cycling distances
Converting car specifications and fuel economy ratings
Working with GPS and navigation systems

Miles to Kilometers Converter

Conversion Formula

Common Uses

Frequently Asked Questions

How many kilometers are in a mile?

How do I convert a marathon distance to km?

Why do some countries use miles?