Marathon Pace Calculator
Translate your marathon finish goal into average pace and per-mile splits for the entire 26.2 miles.
Tip: Marathon paces vary widely—common goals fall between 3:15 and 5:00. Adjust minutes to match your plan.
Kilometer Splits
- KM 1: 5:20
- KM 2: 10:40
- KM 3: 16:00
- KM 4: 21:20
- KM 5: 26:40
- KM 6: 32:00
- KM 7: 37:20
- KM 8: 42:40
- KM 9: 47:59
- KM 10: 53:19
- KM 11: 58:39
- KM 12: 63:59
- KM 13: 69:19
- KM 14: 74:39
- KM 15: 79:59
- KM 16: 85:19
- KM 17: 90:39
- KM 18: 95:59
- KM 19: 101:19
- KM 20: 106:39
- KM 21: 111:59
- KM 22: 117:19
- KM 23: 122:39
- KM 24: 127:59
- KM 25: 133:19
- KM 26: 138:39
- KM 27: 143:58
- KM 28: 149:18
- KM 29: 154:38
- KM 30: 159:58
- KM 31: 165:18
- KM 32: 170:38
- KM 33: 175:58
- KM 34: 181:18
- KM 35: 186:38
- KM 36: 191:58
- KM 37: 197:18
- KM 38: 202:38
- KM 39: 207:58
- KM 40: 213:18
- KM 41: 218:38
- KM 42: 223:58
- Finish: 225:00
Mile Splits
- Mile 1: 8:35
- Mile 2: 17:10
- Mile 3: 25:45
- Mile 4: 34:20
- Mile 5: 42:54
- Mile 6: 51:29
- Mile 7: 60:04
- Mile 8: 68:39
- Mile 9: 77:14
- Mile 10: 85:49
- Mile 11: 94:24
- Mile 12: 102:59
- Mile 13: 111:34
- Mile 14: 120:09
- Mile 15: 128:43
- Mile 16: 137:18
- Mile 17: 145:53
- Mile 18: 154:28
- Mile 19: 163:03
- Mile 20: 171:38
- Mile 21: 180:13
- Mile 22: 188:48
- Mile 23: 197:23
- Mile 24: 205:58
- Mile 25: 214:32
- Mile 26: 223:07
- Finish: 225:00
Marathon pace reference
| Finish time | Pace /km | Pace /mile |
|---|---|---|
| 3:00:00 | 4:16 | 6:52 |
| 3:30:00 | 4:59 | 8:01 |
| 4:00:00 | 5:41 | 9:09 |
| 4:30:00 | 6:24 | 10:18 |
| 5:00:00 | 7:07 | 11:27 |
How we calculate this
Pace = time ÷ distance; time = pace × distance.
We calculate with exact distances: 5,000 m, 10,000 m, 21,097.5 m for a half marathon, and 42,195 m for a marathon. One mile is 1,609.344 m. Results are rounded to the nearest second only for display; calculations retain the full precision.
Sources: World Athletics: half marathon distance; World Athletics: marathon distance; NIST: unit conversion factors.
Using your results
Use the splits to plan your target pace. Allow for hills and aid-station stops when deciding how to distribute your effort. The reference table shows several finish-time goals so you can compare the pace each requires.
Common questions
What pace is needed for a 4:00:00 marathon?
A 4:00:00 marathon requires an average pace of 5:41 per kilometer or 9:09 per mile over 42.195 km. These displayed paces are rounded to the nearest second; the calculation assumes a constant average pace, including stops.
Why does my watch show a different pace?
Your watch divides time by its measured distance. GPS error and the path you take can differ from the official course distance used here.
Do the splits include stops?
Splits assume a constant average pace. If your target is an elapsed finish time, that average must include time spent stopped.