Half marathon pace chart
A 2:00 half marathon is 9:09 per mile (5:41/km) and a 1:45 is 8:01 (4:59/km). Every finish time from 1:20 to 2:45, with mile and km checkpoints.
Checkpoints are even-pace clock times for the half marathon (21.0975 km / 13.11 mi), on mile markers or kilometre markers to match the toggle. Underlined times open that goal's page, with every split.
Your exact pace
The chart moves in fixed steps. Enter the half marathon time you actually want.
- Per mile
- 9:09
- Per km
- 5:41
- Speed
- 6.55 mph
average pace
average pace
on a treadmill
Checkpoints at even pace
- 3 mi
- 27:28
- 5 mi
- 45:46
- 10 mi
- 1:31:32
- 12 mi
- 1:49:51
The same goal as a 1% negative split
- First half
- 1:00:36
- Second half
- 59:24
9:15 /mi
9:04 /mi
Pace band: every mile, ready to print
Band
Half marathon 2:00:00 · 1% negative split · per mile
- 19:15
- 218:29
- 327:44
- 436:59
- 546:14
- 655:28
- 71:04:38
- 81:13:42
- 91:22:46
- 101:31:49
- 111:40:53
- 121:49:57
- 131:59:01
- 13.12:00:00
Even-pace arithmetic: goal seconds × distance covered ÷ race distance. It assumes you can hold the pace, which is the part training decides.
A plan for the time you picked
Your plan · free preview
12-week half marathon plan
Beginner · 3 runs a week
Starts next Monday
Level
Length
- Longest run
- 12mi
- Biggest week
- 22mi
- Whole plan
- 177mi
Train for this in Runsy
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The app builds your own plan when you set it up; this preview is a guide.
Week by week · 12 weeks · in miles
| Week | Phase | Long run | Total |
|---|---|---|---|
| 1 | base | 6.2 | 12 |
| 2 | base | 6.8 | 12 |
| 3 | base | 8.1 | 15 |
| 4 | cutback | 5.6 | 9.9 |
| 5 | build | 8.7 | 16 |
| 6 | build | 9.9 | 18 |
| 7 | build | 11 | 19 |
| 8 | cutback | 7.5 | 13 |
| 9 | peak | 12 | 22 |
| 10 | taper | 7.5 | 13 |
| 11 | taper | 5 | 9.3 |
| 12 | race | 13.1 | 18 |
How to use this chart
Find your goal finish time in the left column. The next two columns are the average pace you need to hold, per mile and per kilometre. The four columns after that are your checkpoints: the clock time you should see at 3, 5, 10 and 12 miles on an even effort, or at 5K, 10K, 15K and 20K if you switch the chart to kilometres. Underlined times (1:30, 1:45 and 2:00) have their own page with every split. If your goal falls between rows, the calculator below works it out exactly, and the treadmill pace chart converts the pace to belt speed.
Checkpoints are the useful part. Average pace is something you only know afterwards; a split is something you can act on while there is still race left.
Even pace is the target, not the plan
These splits assume perfectly even pace, which almost nobody runs and nobody should aim for. The chart is a reference, not an instruction.
In practice the closing 5K of a half marathon is where the race is decided, and arriving there with something left is worth more than any time you bank early. Start 5–10 seconds per kilometre slower than the chart says and take it back over the final third. A negative split feels like a good race; a positive split feels like the wheels coming off, even when the finish time is identical.
The other adjustment is course and conditions. Anything above roughly 15°C, a headwind on an exposed stretch, or meaningful elevation will cost you time no chart can predict. Run the effort, check it against the splits, and adjust — do not chase a number that stopped being realistic at 8K.
Choosing a target you can actually hold
The most common mistake is picking a goal from what you would like to run rather than what your training supports. Two sanity checks:
- Recent 10K. A realistic half marathon is roughly your 10K time doubled plus 8–12 minutes, assuming you have done the long runs.
- Long-run pace. Your target half pace should feel comfortably faster than your easy long runs, but not close to your 5K effort. If your goal pace is your current 10K pace, it is too fast.
Once the number is honest, the training matters more than the chart. Holding 5:20/km for 21.1 km is a different capability from holding it for 10 km, and that gap is closed by long runs and tempo work, not by knowing your splits. Two common targets have their own pages: 2-hour half marathon pace and 1:45 half marathon pace.
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<p style="font:13px/1.4 system-ui,sans-serif;margin:6px 0 0">Half marathon pace calculator by <a href="https://www.runsy.ai/tools/pace-chart/half-marathon">Runsy</a></p>
<script>addEventListener("message",function(e){if(e.origin==="https://www.runsy.ai"&&e.data&&e.data.type==="runsy:embed-height"){document.querySelectorAll("iframe").forEach(function(f){if(f.contentWindow===e.source)f.style.height=e.data.height+"px"})}})</script>Train for the time you just picked
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$12.99/mo after a 7-day free trialiPhone only
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Everything under this page
- 1:30 half marathon paceA 1:30 half marathon is 6:52 per mile or 4:16 per km, with 10K at 42:40. Every mile and km split, the arithmetic, and how to train for it.1:20–1:40
- 1:45 half marathon paceA 1:45 half marathon is 8:01 per mile or 4:59 per km, with 10K at 49:46. Every mile and km split, the arithmetic, and how to train for it.1:35–1:55
- 2-hour half marathon paceA 2-hour half marathon is 9:09 per mile or 5:41 per km, with 10K at 56:53. Every mile and km split, the arithmetic, and how to go sub-2.1:50–2:10
Fair questions
What pace is a 2-hour half marathon?
5:41 per kilometre, or 9:09 per mile. Your checkpoints are 28:26 at 5K, 56:53 at 10K, 1:25:19 at 15K and 1:53:45 at 20K.
What pace is a 1:45 half marathon?
4:59 per kilometre, or 8:01 per mile: 24:53 at 5K, 49:46 at 10K, 1:14:39 at 15K and 1:39:32 at 20K.
What is a good half marathon time?
Around 2:00 is a common first-timer goal and a genuinely solid result. Under 1:45 is a strong recreational time, and under 1:30 puts you in the front portion of most mass-participation fields.
Should I run even splits in a half marathon?
Aim for slightly negative. Starting 5–10 seconds per kilometre slower than goal pace and finishing faster produces better results than banking time early, because the final 5K is where a positive split becomes expensive.
How do I convert pace per kilometre to pace per mile?
Multiply by 1.609. A 5:00/km pace is 8:03 per mile. Both columns are in the chart above so you do not have to.