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Half marathon pace chart: pace per km and per mile, with 5K/10K/15K/20K splits for every goal time
A half marathon is 21.0975 km (13.1094 miles). The chart below turns every goal time from 1:15 to 3:00 into the pace you need per kilometre and per mile, and the clock you should see at 5 km, 10 km, 15 km, 10 miles and 20 km if you run it evenly. Print it, write the splits on your arm, or — better — put the plan on your wrist and let the Watch hold you to it.
| Finish | per km | per mile | 5 km | 10 km | 15 km | 10 mi | 20 km |
|---|---|---|---|---|---|---|---|
| 1:15:00 | 3:33 | 5:43 | 17:46 | 35:33 | 53:19 | 57:13 | 1:11:06 |
| 1:20:00 | 3:48 | 6:06 | 18:58 | 37:55 | 56:53 | 1:01:02 | 1:15:50 |
| 1:25:00 | 4:02 | 6:29 | 20:09 | 40:17 | 1:00:26 | 1:04:50 | 1:20:35 |
| 1:30:00 | 4:16 | 6:52 | 21:20 | 42:40 | 1:03:59 | 1:08:39 | 1:25:19 |
| 1:35:00 | 4:30 | 7:15 | 22:31 | 45:02 | 1:07:33 | 1:12:28 | 1:30:03 |
| 1:40:00 | 4:44 | 7:38 | 23:42 | 47:24 | 1:11:06 | 1:16:17 | 1:34:48 |
| 1:45:00 | 4:59 | 8:01 | 24:53 | 49:46 | 1:14:39 | 1:20:06 | 1:39:32 |
| 1:50:00 | 5:13 | 8:23 | 26:04 | 52:08 | 1:18:12 | 1:23:55 | 1:44:17 |
| 1:55:00 | 5:27 | 8:46 | 27:15 | 54:31 | 1:21:46 | 1:27:43 | 1:49:01 |
| 2:00:00 | 5:41 | 9:09 | 28:26 | 56:53 | 1:25:19 | 1:31:32 | 1:53:45 |
| 2:05:00 | 5:55 | 9:32 | 29:37 | 59:15 | 1:28:52 | 1:35:21 | 1:58:30 |
| 2:10:00 | 6:10 | 9:55 | 30:49 | 1:01:37 | 1:32:26 | 1:39:10 | 2:03:14 |
| 2:15:00 | 6:24 | 10:18 | 32:00 | 1:03:59 | 1:35:59 | 1:42:59 | 2:07:59 |
| 2:20:00 | 6:38 | 10:41 | 33:11 | 1:06:22 | 1:39:32 | 1:46:48 | 2:12:43 |
| 2:25:00 | 6:52 | 11:04 | 34:22 | 1:08:44 | 1:43:06 | 1:50:36 | 2:17:27 |
| 2:30:00 | 7:07 | 11:27 | 35:33 | 1:11:06 | 1:46:39 | 1:54:25 | 2:22:12 |
| 2:35:00 | 7:21 | 11:49 | 36:44 | 1:13:28 | 1:50:12 | 1:58:14 | 2:26:56 |
| 2:40:00 | 7:35 | 12:12 | 37:55 | 1:15:50 | 1:53:45 | 2:02:03 | 2:31:41 |
| 2:45:00 | 7:49 | 12:35 | 39:06 | 1:18:12 | 1:57:19 | 2:05:52 | 2:36:25 |
| 2:50:00 | 8:03 | 12:58 | 40:17 | 1:20:35 | 2:00:52 | 2:09:41 | 2:41:09 |
| 2:55:00 | 8:18 | 13:21 | 41:28 | 1:22:57 | 2:04:25 | 2:13:30 | 2:45:54 |
| 3:00:00 | 8:32 | 13:44 | 42:40 | 1:25:19 | 2:07:59 | 2:17:18 | 2:50:38 |
Even-split times; the last 1.0975 km is run at the same pace. Rounded to the second.
How to use the chart
- Pick a realistic goal. A recent 10K time × 2.1 is a fair half marathon prediction for a trained runner; ×2.2 if your long runs are short.
- Read across: a 1:45 half is 4:59/km — 5 km in 24:53, 10 km in 49:46, 15 km in 1:14:39, 20 km in 1:39:32.
- Check the 10 km split on the day. If you're more than a minute ahead of the chart at 10 km, you started too fast; the second half will collect the debt.
Even, negative or positive split?
The chart is an even split. Most personal bests are run as a slight negative split — the second half a touch faster — and most blow-ups as a large positive one. The negative split calculator takes the same goal time and gives you kilometre-by-kilometre targets that start a few seconds slower and finish faster; the marathon and half marathon pacing guide covers hills, fuelling and what to do when the plan slips.
Running the plan on Apple Watch
Apple's Workout app can show a pace alert around one target. Vanoor turns the whole plan into the run: pick half marathon, type the goal time, choose even or negative split, sync — and on the wrist you see the target band for the current kilometre, whether you're inside it, and seconds ahead of or behind plan, with a haptic when you drift. No arithmetic at 18 km.
Half marathon pace — quick answers
What pace is a 2-hour half marathon?
5:41 per km, or 9:09 per mile. 10 km in 56:53, 20 km in 1:53:45.
What pace is a 1:30 half marathon?
4:16 per km, or 6:52 per mile — 10 km in 42:40.
Should I run a half marathon at an even pace?
Even to slightly negative. Use the chart for the even version and the negative split calculator if you want the second half a few seconds per km faster.
Can my Apple Watch show these splits during the race?
Apple's app shows one pace alert; Vanoor shows the target band for each kilometre of the plan and buzzes when you leave it.
Last checked 18 September 2026.
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