Pace Calculator
3:21 Marathon Pace
To finish a Marathon in 3h21, you need to maintain a pace of 4:46 per km (7:40 per mile). Here's your complete split breakdown.
Pace per KM
4:46
min/km
Pace per Mile
7:40
min/mile
Average Speed
12.6
km/h
3h21 Marathon Splits
Plan my Marathon pacing strategy →| Distance | Split Pace | Cumulative Time |
|---|---|---|
| 1 km | 4:46 | 4:46 |
| 2 km | 4:46 | 9:32 |
| 3 km | 4:46 | 14:17 |
| 4 km | 4:46 | 19:03 |
| 5 km | 4:46 | 23:49 |
| 6 km | 4:46 | 28:35 |
| 7 km | 4:46 | 33:21 |
| 8 km | 4:46 | 38:07 |
| 9 km | 4:46 | 42:52 |
| 10 km | 4:46 | 47:38 |
| 11 km | 4:46 | 52:24 |
| 12 km | 4:46 | 57:10 |
| 13 km | 4:46 | 1:01:56 |
| 14 km | 4:46 | 1:06:41 |
| 15 km | 4:46 | 1:11:27 |
| 16 km | 4:46 | 1:16:13 |
| 17 km | 4:46 | 1:20:59 |
| 18 km | 4:46 | 1:25:45 |
| 19 km | 4:46 | 1:30:31 |
| 20 km | 4:46 | 1:35:16 |
| 21 km | 4:46 | 1:40:02 |
| 22 km | 4:46 | 1:44:48 |
| 23 km | 4:46 | 1:49:34 |
| 24 km | 4:46 | 1:54:20 |
| 25 km | 4:46 | 1:59:05 |
| 26 km | 4:46 | 2:03:51 |
| 27 km | 4:46 | 2:08:37 |
| 28 km | 4:46 | 2:13:23 |
| 29 km | 4:46 | 2:18:09 |
| 30 km | 4:46 | 2:22:54 |
| 31 km | 4:46 | 2:27:40 |
| 32 km | 4:46 | 2:32:26 |
| 33 km | 4:46 | 2:37:12 |
| 34 km | 4:46 | 2:41:58 |
| 35 km | 4:46 | 2:46:44 |
| 36 km | 4:46 | 2:51:29 |
| 37 km | 4:46 | 2:56:15 |
| 38 km | 4:46 | 3:01:01 |
| 39 km | 4:46 | 3:05:47 |
| 40 km | 4:46 | 3:10:33 |
| 41 km | 4:46 | 3:15:18 |
| 42 km | 4:46 | 3:20:04 |
| 42.20 km | 4:46 | 3:21:00 |
Ready to Run a 3h21 Marathon?
Getting to 3h21 for your Marathon takes more than just knowing your pace. RunPlan creates a personalized AI training plan based on your current fitness, schedule, and race date to help you hit your goal.