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Kilometers to miles (km to mi)

The answer, the exact formula and a table with the values people look up most.

1 km = 0.621371 mi1 mi = 1.60934 kmMiles = Kilometers ÷ 1.609344Example: 21.0975 km = 13.1094 mi

1 km = 0.6213711922 mi

Conversions people ask for most

Convert kilometers to miles

Length · kilometers to miles
kmmi
1 km0.62137 mi
3 km1.8641 mi
5 km3.1069 mi
10 km6.2137 mi
15 km9.3206 mi
20 km12.427 mi
21.0975 km13.109 mi
42.195 km26.219 mi
50 km31.069 mi
100 km62.137 mi
200 km124.27 mi
500 km310.69 mi
1000 km621.37 mi

The factor is exact: it comes from the official definition of the units. The table rounds to a few decimals; the converter above gives up to 10 significant digits.

The two units

Kilometer km

A kilometer is 1,000 meters; it is the unit for road distances in almost every country.

Mile mi

A mile is 5,280 feet, exactly 1.609344 kilometers; road distances in the US and the UK are signposted in miles.

Frequently asked questions

How many miles are 21.0975 kilometers?
21.0975 km = 13.1094 mi.
What is the formula to convert kilometers to miles?
Miles = Kilometers ÷ 1.609344. 21.0975 km = 13.1094 mi.
Is this conversion exact?
Yes. The factor comes from the international definition of both units, so the only difference you may see is rounding.

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