Pace Calculator
1:20 Half Marathon Pace
To finish a Half Marathon in 1h20, you need to maintain a pace of 3:48 per km (6:06 per mile). Here's your complete split breakdown.
Pace per KM
3:48
min/km
Pace per Mile
6:06
min/mile
Average Speed
15.8
km/h
1h20 Half Marathon Splits
Plan my Half Marathon pacing strategy →| Distance | Split Pace | Cumulative Time |
|---|---|---|
| 1 km | 3:48 | 3:48 |
| 2 km | 3:48 | 7:35 |
| 3 km | 3:48 | 11:23 |
| 4 km | 3:48 | 15:10 |
| 5 km | 3:48 | 18:58 |
| 6 km | 3:48 | 22:45 |
| 7 km | 3:48 | 26:33 |
| 8 km | 3:48 | 30:20 |
| 9 km | 3:48 | 34:08 |
| 10 km | 3:48 | 37:55 |
| 11 km | 3:48 | 41:43 |
| 12 km | 3:48 | 45:30 |
| 13 km | 3:48 | 49:18 |
| 14 km | 3:48 | 53:05 |
| 15 km | 3:48 | 56:53 |
| 16 km | 3:48 | 1:00:40 |
| 17 km | 3:48 | 1:04:28 |
| 18 km | 3:48 | 1:08:15 |
| 19 km | 3:48 | 1:12:03 |
| 20 km | 3:48 | 1:15:50 |
| 21 km | 3:48 | 1:19:38 |
| 21.10 km | 3:48 | 1:20:00 |
Ready to Run a 1h20 Half Marathon?
Getting to 1h20 for your Half Marathon takes more than just knowing your pace. RunPlan creates a personalized AI training plan based on your current fitness, schedule, and race date to help you hit your goal.