This calculator converts miles to kilometers for travelers, drivers, runners, and anyone reading metric distances.
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Enter the distance in miles, including decimals if needed, and the calculator returns the equivalent distance in kilometers.
Multiply miles by 1.609344. Formula: kilometers = miles × 1.609344.
A 26.2-mile marathon is 26.2 × 1.609344 = 42.1648 kilometers. Rounded sensibly, that is 42.16 km.
One mile equals exactly 1.609344 kilometers. For quick estimates, multiplying by 1.6 is usually close enough.
The exact conversion factor produces decimal results. Round to two decimal places for everyday distances, or keep more digits when precision matters.
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