Pace per mile
11:49/mi
Pace per km
7:21/km
Speed
5.07mph
Distance
21.10km
Half marathon
Show the math
Pace = 2:35:00 ÷ 13.11 mi = 11:49 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:11:49 |
| Mile 2 | 0:23:39 |
| Mile 3 | 0:35:28 |
| Mile 4 | 0:47:18 |
| Mile 5 | 0:59:07 |
| Mile 6 | 1:10:56 |
| Mile 7 | 1:22:46 |
| Mile 8 | 1:34:35 |
| Mile 9 | 1:46:25 |
| Mile 10 | 1:58:14 |
| Mile 11 | 2:10:04 |
| Mile 12 | 2:21:53 |
| Mile 13 | 2:33:42 |
| Finish | 2:35:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:10:08 | 10:08 |
| 5K | 0:33:42 | 10:51 |
| 10K | 1:10:15 | 11:18 |
| Marathon | 5:23:10 | 12:20 |
Riegel's formula: T2 = T1 × (D2 ÷ D1)^1.06. Assumes training for the distance.
How to use it
- Enter your numbers. Switch between US and metric units at any time.
- Results update as you type, and the formula is shown so you can check it.
- Copy the link, save the plan on this device, or print it for your next appointment.
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These are estimates, not a diagnosis. A clinician can account for your health history and medicines.
Other Half marathon times
Common questions
What pace is a 2:35:00 Half marathon?
11:49 per mile, or 7:21 per kilometer.
What would that predict for other races?
1 mile about 0:10:08; 5K about 0:33:42; 10K about 1:10:15, using Riegel's formula.