Pace per mile
14:29/mi
Pace per km
9:00/km
Speed
4.14mph
Distance
5.00km
5K
Show the math
Pace = 0:45:00 ÷ 3.11 mi = 14:29 /mi
Splits
| Split | Time |
|---|---|
| Mile 1 | 14:29 |
| Mile 2 | 28:58 |
| Mile 3 | 43:27 |
| Finish | 45:00 |
Equivalent race times
| Race | Predicted time | Pace per mile |
|---|---|---|
| 1 mile | 0:13:32 | 13:32 |
| 10K | 1:33:49 | 15:06 |
| Half marathon | 3:27:01 | 15:47 |
| Marathon | 7:11:36 | 16:28 |
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 5K times
Common questions
What pace is a 45:00 5K?
14:29 per mile, or 9:00 per kilometer.
What would that predict for other races?
1 mile about 0:13:32; 10K about 1:33:49; Half marathon about 3:27:01, using Riegel's formula.