Pace per mile
8:01/mi
Pace per km
4:59/km
Speed
7.49mph
Distance
21.10km
Half marathon
Show the math
Pace = 1:45:00 ÷ 13.11 mi = 8:01 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 0:08:01 |
| Mile 2 | 0:16:01 |
| Mile 3 | 0:24:02 |
| Mile 4 | 0:32:02 |
| Mile 5 | 0:40:03 |
| Mile 6 | 0:48:03 |
| Mile 7 | 0:56:04 |
| Mile 8 | 1:04:05 |
| Mile 9 | 1:12:05 |
| Mile 10 | 1:20:06 |
| Mile 11 | 1:28:06 |
| Mile 12 | 1:36:07 |
| Mile 13 | 1:44:07 |
| Finish | 1:45:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:06:52 | 6:52 |
| 5K | 0:22:50 | 7:21 |
| 10K | 0:47:35 | 7:40 |
| Marathon | 3:38:55 | 8:21 |
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 1:45:00 Half marathon?
8:01 per mile, or 4:59 per kilometer.
What would that predict for other races?
1 mile about 0:06:52; 5K about 0:22:50; 10K about 0:47:35, using Riegel's formula.