Pace Calculator
1:00 Half Marathon Pace
To finish a Half Marathon in 1h, you need to maintain a pace of 2:51 per km (4:35 per mile). Here's your complete split breakdown.
Pace per KM
2:51
min/km
Pace per Mile
4:35
min/mile
Average Speed
21.1
km/h
1h Half Marathon Splits
Plan my Half Marathon pacing strategy →| Distance | Split Pace | Cumulative Time |
|---|---|---|
| 1 km | 2:51 | 2:51 |
| 2 km | 2:51 | 5:41 |
| 3 km | 2:51 | 8:32 |
| 4 km | 2:51 | 11:23 |
| 5 km | 2:51 | 14:13 |
| 6 km | 2:51 | 17:04 |
| 7 km | 2:51 | 19:54 |
| 8 km | 2:51 | 22:45 |
| 9 km | 2:51 | 25:36 |
| 10 km | 2:51 | 28:26 |
| 11 km | 2:51 | 31:17 |
| 12 km | 2:51 | 34:08 |
| 13 km | 2:51 | 36:58 |
| 14 km | 2:51 | 39:49 |
| 15 km | 2:51 | 42:40 |
| 16 km | 2:51 | 45:30 |
| 17 km | 2:51 | 48:21 |
| 18 km | 2:51 | 51:11 |
| 19 km | 2:51 | 54:02 |
| 20 km | 2:51 | 56:53 |
| 21 km | 2:51 | 59:43 |
| 21.10 km | 2:51 | 1:00:00 |
Ready to Run a 1h Half Marathon?
Getting to 1h 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.