Pace Calculator
1:51 Half Marathon Pace
To finish a Half Marathon in 1h51, you need to maintain a pace of 5:16 per km (8:28 per mile). Here's your complete split breakdown.
Pace per KM
5:16
min/km
Pace per Mile
8:28
min/mile
Average Speed
11.4
km/h
1h51 Half Marathon Splits
Plan my Half Marathon pacing strategy →| Distance | Split Pace | Cumulative Time |
|---|---|---|
| 1 km | 5:16 | 5:16 |
| 2 km | 5:16 | 10:31 |
| 3 km | 5:16 | 15:47 |
| 4 km | 5:16 | 21:03 |
| 5 km | 5:16 | 26:18 |
| 6 km | 5:16 | 31:34 |
| 7 km | 5:16 | 36:50 |
| 8 km | 5:16 | 42:05 |
| 9 km | 5:16 | 47:21 |
| 10 km | 5:16 | 52:37 |
| 11 km | 5:16 | 57:52 |
| 12 km | 5:16 | 1:03:08 |
| 13 km | 5:16 | 1:08:24 |
| 14 km | 5:16 | 1:13:39 |
| 15 km | 5:16 | 1:18:55 |
| 16 km | 5:16 | 1:24:11 |
| 17 km | 5:16 | 1:29:27 |
| 18 km | 5:16 | 1:34:42 |
| 19 km | 5:16 | 1:39:58 |
| 20 km | 5:16 | 1:45:14 |
| 21 km | 5:16 | 1:50:29 |
| 21.10 km | 5:16 | 1:51:00 |
Ready to Run a 1h51 Half Marathon?
Getting to 1h51 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.