Pace Calculator
1:03 Half Marathon Pace
To finish a Half Marathon in 1h03, you need to maintain a pace of 2:59 per km (4:48 per mile). Here's your complete split breakdown.
Pace per KM
2:59
min/km
Pace per Mile
4:48
min/mile
Average Speed
20.1
km/h
1h03 Half Marathon Splits
Plan my Half Marathon pacing strategy →| Distance | Split Pace | Cumulative Time |
|---|---|---|
| 1 km | 2:59 | 2:59 |
| 2 km | 2:59 | 5:58 |
| 3 km | 2:59 | 8:58 |
| 4 km | 2:59 | 11:57 |
| 5 km | 2:59 | 14:56 |
| 6 km | 2:59 | 17:55 |
| 7 km | 2:59 | 20:54 |
| 8 km | 2:59 | 23:53 |
| 9 km | 2:59 | 26:53 |
| 10 km | 2:59 | 29:52 |
| 11 km | 2:59 | 32:51 |
| 12 km | 2:59 | 35:50 |
| 13 km | 2:59 | 38:49 |
| 14 km | 2:59 | 41:48 |
| 15 km | 2:59 | 44:48 |
| 16 km | 2:59 | 47:47 |
| 17 km | 2:59 | 50:46 |
| 18 km | 2:59 | 53:45 |
| 19 km | 2:59 | 56:44 |
| 20 km | 2:59 | 59:43 |
| 21 km | 2:59 | 1:02:43 |
| 21.10 km | 2:59 | 1:03:00 |
Ready to Run a 1h03 Half Marathon?
Getting to 1h03 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.