Pace per mile
8:23/mi
Pace per km
5:13/km
Speed
7.15mph
Distance
21.10km
Half marathon
Show the math
Pace = 1:50:00 ÷ 13.11 mi = 8:23 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:08:23 |
| Mile 2 | 0:16:47 |
| Mile 3 | 0:25:10 |
| Mile 4 | 0:33:34 |
| Mile 5 | 0:41:57 |
| Mile 6 | 0:50:21 |
| Mile 7 | 0:58:44 |
| Mile 8 | 1:07:08 |
| Mile 9 | 1:15:31 |
| Mile 10 | 1:23:55 |
| Mile 11 | 1:32:18 |
| Mile 12 | 1:40:41 |
| Mile 13 | 1:49:05 |
| Finish | 1:50:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:07:11 | 7:11 |
| 5K | 0:23:55 | 7:42 |
| 10K | 0:49:51 | 8:01 |
| Marathon | 3:49:21 | 8:45 |
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 1:50:00 Half marathon?
8:23 per mile, or 5:13 per kilometer.
What would that predict for other races?
1 mile about 0:07:11; 5K about 0:23:55; 10K about 0:49:51, using Riegel's formula.