Convert Miles to Kilometers
mi to km · length conversion
What are miles and kilometers?
A mile is 5,280 feet (1.609 km), the standard unit for road distance in the US and UK. A kilometer is 1,000 meters, the standard metric unit for road distances. 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 miles to kilometers
1 mi = 1.60934 km. To convert, multiply the number of miles by 1.60934. For example, 5 mi = 8.04672 km, and 20 mi = 32.1869 km. To go the other way, multiply kilometers by 0.621371 (since 1 km = 0.621371 mi).
Miles to Kilometers conversion table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 | 1.60934 |
| 2 | 3.21869 |
| 5 | 8.04672 |
| 10 | 16.0934 |
| 20 | 32.1869 |
| 50 | 80.4672 |
| 100 | 160.934 |
FAQ
What is 1 mi in km?
1 mi = 1.60934 km. To convert any amount, multiply the number of miles by 1.60934.
How do I convert kilometers back to miles?
Go the other way: 1 km = 0.621371 mi, so multiply kilometers by 0.621371 to get miles.
Is a mile bigger than a kilometer?
Yes — 1 mi is the larger unit, equal to 1.60934 km.
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.