Convert Kilometers to Miles
km to mi · length conversion
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.