Pace per mile
10:18/mi
Pace per km
6:24/km
Speed
5.83mph
Distance
21.10km
Half marathon
Show the math
Pace = 2:15:00 ÷ 13.11 mi = 10:18 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:10:18 |
| Mile 2 | 0:20:36 |
| Mile 3 | 0:30:54 |
| Mile 4 | 0:41:12 |
| Mile 5 | 0:51:29 |
| Mile 6 | 1:01:47 |
| Mile 7 | 1:12:05 |
| Mile 8 | 1:22:23 |
| Mile 9 | 1:32:41 |
| Mile 10 | 1:42:59 |
| Mile 11 | 1:53:17 |
| Mile 12 | 2:03:35 |
| Mile 13 | 2:13:52 |
| Finish | 2:15:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:08:49 | 8:49 |
| 5K | 0:29:21 | 9:27 |
| 10K | 1:01:11 | 9:51 |
| Marathon | 4:41:28 | 10:44 |
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 2:15:00 Half marathon?
10:18 per mile, or 6:24 per kilometer.
What would that predict for other races?
1 mile about 0:08:49; 5K about 0:29:21; 10K about 1:01:11, using Riegel's formula.