Pace per mile
11:04/mi
Pace per km
6:52/km
Speed
5.42mph
Distance
21.10km
Half marathon
Show the math
Pace = 2:25:00 ÷ 13.11 mi = 11:04 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:11:04 |
| Mile 2 | 0:22:07 |
| Mile 3 | 0:33:11 |
| Mile 4 | 0:44:15 |
| Mile 5 | 0:55:18 |
| Mile 6 | 1:06:22 |
| Mile 7 | 1:17:26 |
| Mile 8 | 1:28:29 |
| Mile 9 | 1:39:33 |
| Mile 10 | 1:50:36 |
| Mile 11 | 2:01:40 |
| Mile 12 | 2:12:44 |
| Mile 13 | 2:23:47 |
| Finish | 2:25:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:09:29 | 9:29 |
| 5K | 0:31:31 | 10:09 |
| 10K | 1:05:43 | 10:35 |
| Marathon | 5:02:19 | 11:32 |
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 2:25:00 Half marathon?
11:04 per mile, or 6:52 per kilometer.
What would that predict for other races?
1 mile about 0:09:29; 5K about 0:31:31; 10K about 1:05:43, using Riegel's formula.