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Mile to Kilometer

Convert mile (mi) to kilometer (km) — with the exact factor, a quick-reference table and a free converter that works offline.

1 mi = 1.609344 km

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Conversion table

Mile (mi)Kilometer (km)
1 mi1.609344 km
2 mi3.218688 km
5 mi8.04672 km
10 mi16.09344 km
20 mi32.18688 km
50 mi80.4672 km
100 mi160.9344 km
500 mi804.672 km

How the conversion works

Both units measure length. One mile equals exactly 1.609344 km, so multiply by that factor to convert.

FAQ

How many kilometers in a mile?

1 mi = 1.609344 km.

How do I convert mile to kilometer?

Multiply the mile value by 1.609344. For example, 10 mi × 1.609344 = 16.09344 km.

Where does the factor come from?

The conversion factor is defined in NIST SP 811; both units are length units converted through meter.

Related conversions

Kilometer to Mile Centimeter to Inch Inch to Centimeter Foot to Inch

Conversion factors: NIST SP 811. Computed by the same engine that powers the app.

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