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Convert Kilometers to Miles

km to mi · length conversion

km
mi
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↔ Convert Miles to Kilometers instead

What are kilometers and miles?

A kilometer is 1,000 meters, the standard metric unit for road distances. A mile is 5,280 feet (1.609 km), the standard unit for road distance in the US and UK. For scale: a doorway is about 2 m (6.6 ft) tall, and a marathon is 42.2 km (26.2 mi).

How to convert kilometers to miles

1 km = 0.621371 mi. To convert, multiply the number of kilometers by 0.621371. For example, 5 km = 3.10686 mi, and 20 km = 12.4274 mi. To go the other way, multiply miles by 1.60934 (since 1 mi = 1.60934 km).

Kilometers to Miles conversion table

Kilometers (km)Miles (mi)
1 0.621371
2 1.24274
5 3.10686
10 6.21371
20 12.4274
50 31.0686
100 62.1371

FAQ

What is 1 km in mi?

1 km = 0.621371 mi. To convert any amount, multiply the number of kilometers by 0.621371.

How do I convert miles back to kilometers?

Go the other way: 1 mi = 1.60934 km, so multiply miles by 1.60934 to get kilometers.

Is a kilometer bigger than a mile?

No — 1 km is the smaller unit, equal to 0.621371 mi (it takes 1.60934 km to make one mi).

Are these length conversions exact?

They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.

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