Know your target. Plan your splits.
Half marathon pace chart
Compare half-marathon finish times with kilometre and mile pace over the full 21.0975 km. Choose a target from one to four hours, or enter your own time for a complete split plan.
A 2:00:00 half marathon means an average pace of 5:41 per km or 9:09 per mile, over 21.0975 km.
Half marathon finish times and average pace
Every row assumes even pace. Select a finish time for the full split plan. The table covers 1:00:00 to 4:00:00; use the custom planner for other targets.
| Finish | Pace / km | Pace / mile | Halfway |
|---|---|---|---|
| 1:00:00 | 2:51 | 4:35 | 30:00 |
| 1:05:00 | 3:05 | 4:57 | 32:30 |
| 1:10:00 | 3:19 | 5:20 | 35:00 |
| 1:15:00 | 3:33 | 5:43 | 37:30 |
| 1:20:00 | 3:48 | 6:06 | 40:00 |
| 1:25:00 | 4:02 | 6:29 | 42:30 |
| 1:30:00 | 4:16 | 6:52 | 45:00 |
| 1:35:00 | 4:30 | 7:15 | 47:30 |
| 1:40:00 | 4:44 | 7:38 | 50:00 |
| 1:45:00 | 4:59 | 8:01 | 52:30 |
| 1:50:00 | 5:13 | 8:23 | 55:00 |
| 1:55:00 | 5:27 | 8:46 | 57:30 |
| 2:00:00 | 5:41 | 9:09 | 1:00:00 |
| 2:05:00 | 5:55 | 9:32 | 1:02:30 |
| 2:10:00 | 6:10 | 9:55 | 1:05:00 |
| 2:15:00 | 6:24 | 10:18 | 1:07:30 |
| 2:20:00 | 6:38 | 10:41 | 1:10:00 |
| 2:25:00 | 6:52 | 11:04 | 1:12:30 |
| 2:30:00 | 7:07 | 11:27 | 1:15:00 |
| 2:35:00 | 7:21 | 11:49 | 1:17:30 |
| 2:40:00 | 7:35 | 12:12 | 1:20:00 |
| 2:45:00 | 7:49 | 12:35 | 1:22:30 |
| 2:50:00 | 8:03 | 12:58 | 1:25:00 |
| 2:55:00 | 8:18 | 13:21 | 1:27:30 |
| 3:00:00 | 8:32 | 13:44 | 1:30:00 |
| 3:05:00 | 8:46 | 14:07 | 1:32:30 |
| 3:10:00 | 9:00 | 14:30 | 1:35:00 |
| 3:15:00 | 9:15 | 14:52 | 1:37:30 |
| 3:20:00 | 9:29 | 15:15 | 1:40:00 |
| 3:25:00 | 9:43 | 15:38 | 1:42:30 |
| 3:30:00 | 9:57 | 16:01 | 1:45:00 |
| 3:35:00 | 10:11 | 16:24 | 1:47:30 |
| 3:40:00 | 10:26 | 16:47 | 1:50:00 |
| 3:45:00 | 10:40 | 17:10 | 1:52:30 |
| 3:50:00 | 10:54 | 17:33 | 1:55:00 |
| 3:55:00 | 11:08 | 17:56 | 1:57:30 |
| 4:00:00 | 11:23 | 18:18 | 2:00:00 |
Halfway is 10.54875 km. These are target examples, not finish-time benchmarks or race cutoff limits.
Custom target
Build your Half marathon split plan
Set a target finish time, then read every kilometre or mile checkpoint through the exact finish.
Displayed pace and split times are rounded to the nearest second. The calculations use the unrounded pace from your target finish time.
| Checkpoint | Segment | Elapsed |
|---|---|---|
| 1 km | 5:41 | 5:41 |
| 2 km | 5:41 | 11:23 |
| 3 km | 5:41 | 17:04 |
| 4 km | 5:41 | 22:45 |
| 5 km | 5:41 | 28:26 |
| 6 km | 5:41 | 34:08 |
| 7 km | 5:41 | 39:49 |
| 8 km | 5:41 | 45:30 |
| 9 km | 5:41 | 51:11 |
| 10 km | 5:41 | 56:53 |
| 11 km | 5:41 | 1:02:34 |
| 12 km | 5:41 | 1:08:15 |
| 13 km | 5:41 | 1:13:57 |
| 14 km | 5:41 | 1:19:38 |
| 15 km | 5:41 | 1:25:19 |
| 16 km | 5:41 | 1:31:00 |
| 17 km | 5:41 | 1:36:42 |
| 18 km | 5:41 | 1:42:23 |
| 19 km | 5:41 | 1:48:04 |
| 20 km | 5:41 | 1:53:45 |
| 21 km | 5:41 | 1:59:27 |
| Finish — Half marathon | 0:33 | 2:00:00 |
Keep the exact half-marathon distance
World Athletics gives the distance as 21.0975K. For a 2:00:00 target, 7,200 seconds divided by 21.0975 is about 5:41.27 per kilometre. Rounded to the nearest second, the even checkpoints are 28:26 at 5K, 56:53 at 10K, 1:25:19 at 15K and 1:53:45 at 20K.
The remaining 1.0975K after the 20K marker takes about 6:15 at that exact pace. Stopping the calculation at 21K would omit 97.5 metres, so the finish time should always be derived from 21.0975K even when the pace display is rounded.
Halfway is not the 10K marker
The geometric halfway point is 10.54875K. Under an even two-hour plan it arrives at exactly 1:00:00; the 10K marker arrives earlier at about 56:53. Treating 10K as halfway would put the second part of the race 1.0975K longer than the first.
Five-kilometre blocks make the chart easy to scan, while the exact halfway split checks whether the total-time arithmetic is balanced. For a target between the five-minute static rows, enter the exact finish time in the custom planner rather than mixing checkpoints from adjacent rows.
Allow for clocks and measurement differences
Decide whether the plan follows chip time or gun time. World Athletics rules distinguish the official time from the starting signal and the net time from the runner crossing the start line. Event cutoffs and awards may use a different clock from a personal pacing goal, so the organiser's rule controls.
A GPS watch measures its recorded path rather than certifying the course. Signal conditions and route tracking can affect displayed distance, and the watch may reach 21.1K before or after the finish. Course markers and official timing are the firmer race-day references.
Use even pace as the control case
The row assumes uninterrupted travel at one average pace. Water stops, congestion, hills, turns and weather are absent from the equation. If you expect 90 seconds of stationary time within a two-hour chip goal, the moving portions must fit inside 1:58:30; the chart does not silently remove that stop.
It also does not infer half-marathon fitness from another result. Use the PB predictor when you want a modelled performance estimate, with its stated assumptions. Once you choose a target, this page gives the exact-distance arithmetic and a handoff to half-marathon discovery and course details.
How this pace chart is calculated
Average pace is target time divided by distance. For 21.0975 km, pace per kilometre is target seconds ÷ 21.0975. Pace per mile multiplies the seconds-per-metre value by 1609.344 metres. Each elapsed checkpoint is calculated directly from that unrounded value.
The finish row retains the exact distance, including any partial kilometre or mile. Segment time covers the distance since the previous checkpoint. Rounding happens only for display; adding displayed segment times can differ slightly from the displayed finish. CSV includes unrounded seconds as well as readable times.
This is an even-pace calculation. It does not forecast fitness, adjust for hills or weather, or determine whether an event permits walking. Use the PB predictor to explore performance estimates, and the cutoff guide to interpret official checkpoint rules.
Put your target in context
Find the race for your plan
Compare the course and its current rules, choose a training calendar, and keep your race tasks together.
Sources and review
RaceIndex calculations and editorial guidance, prepared with AI assistance. Arithmetic and references checked .