Sub-1:45 Half Marathon pace
To finish a half marathon in under 1:45, you need to average 4:59 per kilometre, or 8:01 per mile, for the full 21.0975 km.
Required pace
4:59 /km
8:01 per mile · finish 1:45:00
Steady effort
Even-paced splits
Elapsed time you should see at each marker if you run the whole thing at one effort.
| Distance | Elapsed |
|---|---|
| 1 km | 4:59 |
| 2 km | 9:57 |
| 3 km | 14:56 |
| 4 km | 19:54 |
| 5 km | 24:53 |
| 6 km | 29:52 |
| 7 km | 34:50 |
| 8 km | 39:49 |
| 9 km | 44:48 |
| 10 km | 49:46 |
| 11 km | 54:45 |
| 12 km | 59:43 |
| 13 km | 1:04:42 |
| 14 km | 1:09:41 |
| 15 km | 1:14:39 |
| 16 km | 1:19:38 |
| 17 km | 1:24:36 |
| 18 km | 1:29:35 |
| 19 km | 1:34:34 |
| 20 km | 1:39:32 |
| 21 km | 1:44:31 |
| 21.1 km | 1:45:00 |
| Distance | Elapsed |
|---|---|
| 1 mi | 8:01 |
| 2 mi | 16:01 |
| 3 mi | 24:02 |
| 4 mi | 32:02 |
| 5 mi | 40:03 |
| 6 mi | 48:03 |
| 7 mi | 56:04 |
| 8 mi | 1:04:05 |
| 9 mi | 1:12:05 |
| 10 mi | 1:20:06 |
| 11 mi | 1:28:06 |
| 12 mi | 1:36:07 |
| 13 mi | 1:44:07 |
| 13.11 mi | 1:45:00 |
Pacing it in practice
These splits assume even effort on a flat course. Most personal bests are actually run slightly negative. That means a touch slower than target for the first half, then faster once you know the effort is sustainable. Going out fast and hanging on is the most common way to miss a time goal.
Open this target in the calculator to adjust it, switch units, or model a negative split.