Pace per mile
9:09/mi
Pace per km
5:41/km
Speed
6.55mph
Distance
21.10km
Half marathon
Show the math
Pace = 2:00:00 ÷ 13.11 mi = 9:09 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:09:09 |
| Mile 2 | 0:18:18 |
| Mile 3 | 0:27:28 |
| Mile 4 | 0:36:37 |
| Mile 5 | 0:45:46 |
| Mile 6 | 0:54:55 |
| Mile 7 | 1:04:05 |
| Mile 8 | 1:13:14 |
| Mile 9 | 1:22:23 |
| Mile 10 | 1:31:32 |
| Mile 11 | 1:40:41 |
| Mile 12 | 1:49:51 |
| Mile 13 | 1:59:00 |
| Finish | 2:00:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:07:51 | 7:51 |
| 5K | 0:26:05 | 8:24 |
| 10K | 0:54:23 | 8:45 |
| Marathon | 4:10:12 | 9:33 |
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 2:00:00 Half marathon?
9:09 per mile, or 5:41 per kilometer.
What would that predict for other races?
1 mile about 0:07:51; 5K about 0:26:05; 10K about 0:54:23, using Riegel's formula.