Marathon & Race Calculator
A marathon calculator converts between finish time, pace per km/mile, and average speed for the 42.195km (26.2 mile) marathon distance. Accurate pace prediction allows runners to plan even splits and avoid "hitting the wall" by going out too fast.
- 1Pace per km = Finish time (minutes) / 42.195
- 2Pace per mile = Finish time (minutes) / 26.2188
- 3The wall typically hits at 30–35km when glycogen stores are depleted
- 4Negative splitting (running second half slightly faster) is the optimal race strategy
Target 3:30:00 finish=4:59 min/km · 8:01 min/mile210 min ÷ 42.195 = 4.978 min/km
Target 4:00:00 finish=5:41 min/km · 9:09 min/mileCommon first-marathon target
| Finish Time | Pace /km | Pace /mile | Category |
|---|---|---|---|
| 2:30:00 | 3:33 | 5:43 | Elite / sub-elite |
| 3:00:00 | 4:15 | 6:51 | Competitive club runner |
| 3:30:00 | 4:58 | 8:00 | Strong recreational |
| 4:00:00 | 5:41 | 9:09 | Good recreational |
| 4:30:00 | 6:24 | 10:18 | Beginner target |
| 5:00:00 | 7:07 | 11:27 | Walk/run strategy |
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