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Running Pace Calculator
Calculate your training paces from any race time
Enter distance and time to get pace, speed and race splits — or solve for finish time or distance.
Your results
Based on Marathon at 4:33/km
Estimated time
3:11:59
Pace & speed summary
| Metric | Value | Notes |
|---|---|---|
| Pace (min/km) | 4:33 | Time per kilometre |
| Pace (min/mile) | 7:19 | Time per mile |
| Speed (km/h) | 13.2 | Average speed |
| Speed (mph) | 8.2 | Average speed |
| Distance | 42.2 km | 3:11:59 |
Results are exact arithmetic from your distance and time (or pace). Adjust for conditions and terrain as needed.
Key conversions
min/km
4:33
min/mile
7:19
km/h
13.2
Finish time
3:11:59
Pace visualization
Longer bars mean slower pace (more seconds per unit distance).
- min/km4:33
- min/mile7:19
Race splits
| Point | Cumulative | Segment |
|---|---|---|
| 5K | 22:45 | 22:45 |
| 10K | 45:30 | 22:45 |
| 15K | 1:08:15 | 22:45 |
| 20K | 1:31:00 | 22:45 |
| Half | 1:36:00 | 5:00 |
| 25K | 1:53:45 | 17:45 |
| 30K | 2:16:30 | 22:45 |
| 35K | 2:39:15 | 22:45 |
| 40K | 3:02:00 | 22:45 |
| Finish | 3:11:59 | 9:59 |
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FAQ
How do I calculate running pace?
Divide your finish time by the distance. Example: 25:00 for 5K is 5:00 per kilometre. Use Distance + Time mode on this calculator.
Try this example →What is the difference between pace and speed?
Pace is time per unit distance (e.g. min/km). Speed is distance per unit time (e.g. km/h). They describe the same effort in inverse units.
How do I convert min/km to min/mile?
Multiply min/km by 1.609344 (or use this calculator — both units are always shown).
What pace do I need for a sub-2-hour half marathon?
A 1:59:59 half needs about 5:41 per kilometre (9:09 per mile). Use Distance + Pace or the Half Marathon target presets.
Try this example →What pace do I need for a 4-hour marathon?
A 4:00:00 marathon is about 5:41 per kilometre (9:09 per mile). Try the Sub 4:00 marathon shortcut.
Try this example →