13.1 miles (half marathon) equals 21.082 kilometers. Convert the half marathon distance from miles to km.
To convert miles to kilometers, multiply by 1.60934. So 13.1 miles × 1.60934 = 21.08 km. The international mile is exactly 1,609.344 meters.
| Distance | km | miles |
|---|---|---|
| 1 km | — | 0.62 |
| 1 mile | 1.61 | — |
| 5K | — | 3.11 |
| 5 miles | 8.05 | — |
| 10K | — | 6.21 |
| 10 miles | 16.09 | — |
| Half Marathon | 21.1 | 13.11 |
| Marathon | 42.2 | 26.22 |
| 50K | — | 31.07 |
| 50 miles | 80.47 | — |
| 100K | — | 62.14 |
| 100 miles | 160.93 | — |