What 13.1 miles means
13.1 miles is the half marathon. The official distance is 21.0975 km (13.1094 miles), exactly half of the marathon.
13.1 miles in other units
- Kilometers
- 21.0824 km
- Meters
- 21,082 m
- Feet
- 69,168 ft
- Yards
- 23,056 yd
- Nautical miles
- 11.384 nmi
How long does 13.1 miles take?
| Activity (average speed) | Time (h:mm:ss) |
|---|---|
| Walking (3 mph / 4.8 km/h) | 4:22:00 |
| Running (10:00 min/mile) | 2:11:00 |
| Cycling (12 mph / 19.3 km/h) | 1:05:30 |
| Driving (60 mph / 97 km/h) | 13:06 |
| Driving (100 km/h / 62 mph) | 12:39 |
Times are simple averages at a constant speed, without stops.
How it's calculated
13.1 mi × 1.609344 = 21.082406 km
The international mile is defined as exactly 1,609.344 meters, so multiplying by 1.609344 gives an exact result. For a quick mental estimate, multiply by 1.6 (or add 60%).
Nearby conversions
| Miles | Kilometers |
|---|---|
| 6.55 mi | 10.5412 km |
| 9.82 mi | 15.8038 km |
| 11.79 mi | 18.9742 km |
| 14.41 mi | 23.1906 km |
| 16.38 mi | 26.3611 km |
| 19.65 mi | 31.6236 km |
| 26.2 mi | 42.1648 km |