15 kilometres pace calculator
Everything pace-related for the 15 kilometres: the conversion between pace and finish time, a full split table, and an honest note on why projections to other distances mislead.
Enter a finish time
Result
These are estimates from population-level equations, not a measurement of you and not medical advice. Individual results vary widely. Talk to a doctor or a registered dietitian before making significant changes to how you eat or train.
The 15 kilometres
The 15k is a less common road distance that sits between the 10k and the half marathon, and is often used as a half marathon tune-up.
What limits performance here: Aerobic, below threshold. Long enough that pacing discipline and fuelling start to matter, short enough that neither dominates.
Even pacing, at roughly half marathon effort. It is a useful rehearsal for half marathon pacing without the recovery cost.
Distance: 15 km (15,000 m).
15 kilometres pace chart
Finish time, pace per mile and speed for each pace per kilometre. Everything is computed in metres and seconds and converted once, so no rounding accumulates down the table.
| Pace / km | Finish time | Pace / mile | Speed |
|---|---|---|---|
| 4:00 | 1:00:00 | 6:26 | 15 km/h |
| 4:30 | 1:07:30 | 7:15 | 13.3 km/h |
| 5:00 | 1:15:00 | 8:03 | 12 km/h |
| 5:30 | 1:22:30 | 8:51 | 10.9 km/h |
| 6:00 | 1:30:00 | 9:39 | 10 km/h |
| 6:30 | 1:37:30 | 10:28 | 9.2 km/h |
| 7:00 | 1:45:00 | 11:16 | 8.6 km/h |
| 7:30 | 1:52:30 | 12:04 | 8 km/h |
Split times
6:00 / km · 1:30:00
| Distance | Elapsed |
|---|---|
| 1 km | 6:00 |
| 2 km | 12:00 |
| 3 km | 18:00 |
| 4 km | 24:00 |
| 5 km | 30:00 |
| 6 km | 36:00 |
| 7 km | 42:00 |
| 8 km | 48:00 |
| 9 km | 54:00 |
| 10 km | 1:00:00 |
| 11 km | 1:06:00 |
| 12 km | 1:12:00 |
| 13 km | 1:18:00 |
| 14 km | 1:24:00 |
| 15 km | 1:30:00 |
Questions
- What pace do I need for a given 15 km time?
- Divide the target time by the distance in kilometres. For the 15 kilometres, 6:00 per kilometre gives 1:30:00. The chart below covers the range most runners race in.
- How should I pace a 15 km?
- Even pacing, at roughly half marathon effort. It is a useful rehearsal for half marathon pacing without the recovery cost.
- What limits performance over the 15 km?
- Aerobic, below threshold. Long enough that pacing discipline and fuelling start to matter, short enough that neither dominates.
- Are the projections to other distances reliable?
- No, and the page says so. They assume the same pace holds over a different distance, which it does not — pace falls as distance rises. Riegel's formula applies a fatigue exponent and is the right tool for actual prediction.
- Why does the split table have a partial final segment?
- Because 15 kilometres is 15 km, which is not a whole number of split intervals. The final partial segment is shown rather than dropped, since a table that ends before the finish line is wrong exactly where it matters.