Pace per mile
5:43/mi
Pace per km
3:33/km
Speed
10.49mph
Distance
21.10km
Half marathon
Show the math
Pace = 1:15:00 ÷ 13.11 mi = 5:43 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:05:43 |
| Mile 2 | 0:11:27 |
| Mile 3 | 0:17:10 |
| Mile 4 | 0:22:53 |
| Mile 5 | 0:28:36 |
| Mile 6 | 0:34:20 |
| Mile 7 | 0:40:03 |
| Mile 8 | 0:45:46 |
| Mile 9 | 0:51:29 |
| Mile 10 | 0:57:13 |
| Mile 11 | 1:02:56 |
| Mile 12 | 1:08:39 |
| Mile 13 | 1:14:22 |
| Finish | 1:15:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:04:54 | 4:54 |
| 5K | 0:16:18 | 5:15 |
| 10K | 0:34:00 | 5:28 |
| Marathon | 2:36:22 | 5:58 |
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 1:15:00 Half marathon?
5:43 per mile, or 3:33 per kilometer.
What would that predict for other races?
1 mile about 0:04:54; 5K about 0:16:18; 10K about 0:34:00, using Riegel's formula.