The distance behind this chart
A marathon is exactly 42.195 km here, with halfway at 21.0975 km. A 4:00:00 even-pace target reaches halfway at 2:00:00 and 40 km at 3:47:31. The final 2.195 km remains part of the plan; 40 km is not a substitute finish.
Pace and finish-time reference
This grid uses explicit 30-second-per-kilometre steps. The mile pace alongside each row is a display conversion of that same pace, not a separately rounded input. Choose a row as a reference or enter your own target in the calculator.
A specific plan to check
For 42.195 km in 4:00:00, the average displayed pace is 5:41/km or 9:09/mi. The target duration is preserved when you open its split table.
| Marker | Elapsed time |
|---|---|
| 5 km | 0:28:26 |
| 10 km | 0:56:53 |
| 15 km | 1:25:19 |
| 20 km | 1:53:45 |
| Halfway · 21.0975 km | 2:00:00 |
| 25 km | 2:22:12 |
| 30 km | 2:50:38 |
| 35 km | 3:19:05 |
| 40 km | 3:47:31 |
| Finish · 42.195 km | 4:00:00 |
Keep the finish marker
A regular interval does not always divide the full distance. The tool adds a terminal row for the remaining distance and removes duplicate markers. Cumulative rows use the original target, so the finish does not drift when displayed paces are rounded.