How to convert kilometers to miles
- Type the value in kilometers (km) in the box above.
- The result in miles appears instantly, along with the same value in every other unit of length.
- Press ⇄ to convert the other way.
Formula
miles = kilometers ÷ 1.609344 (1 km = 0.621371 mi). So 1 km = 0.621371 mi, and 10 km = 6.21371 mi.
Kilometres to miles is useful for running race distances (5K is 3.1 miles, a half marathon 13.1 and a marathon 26.2), driving distances and speed limits abroad, and cycling routes. Divide by 1.609344 or multiply by 0.621371. A handy trick uses the Fibonacci numbers: 5 km ≈ 3 mi, 8 km ≈ 5 mi, 13 km ≈ 8 mi.
km to mi conversion chart
| Kilometers | Miles |
|---|---|
| 1 km | 0.621371 mi |
| 3 km | 1.86411 mi |
| 5 km | 3.10686 mi |
| 10 km | 6.21371 mi |
| 15 km | 9.32057 mi |
| 21.0975 km | 13.1094 mi |
| 42.195 km | 26.2188 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
| 200 km | 124.274 mi |
| 500 km | 310.686 mi |
| 1,000 km | 621.371 mi |
FAQ
How many miles is a 10K run?
10 km is 6.214 miles.
How do I convert km to mi?
Use miles = kilometers ÷ 1.609344 (1 km = 0.621371 mi). Or type the value above and the converter does it for you.
How do I convert mi back to km?
Multiply by 1.60934, or press the ⇄ button in the converter.