Swim Pace Calculator
2 km in 30 minutes is a pace of 1:30 per 100 m
Swimming 2 km in 30 minutes requires a pace of 1:30 per 100 m (15:00 per km / 24:08 per mile). This distance is a 2 km open-water benchmark.
At 1:30/100 m, each 25 m lap takes 0:23 and each 50 m length takes 0:45. To check a different time for 2 km, or to explore pool and open-water splits, use the calculator below.
Pace breakdown
| Distance | 2 km |
| Target time | 30 minutes |
| Pace per 100 m | 1:30 |
| Pace per km | 15:00 |
| Pace per mile | 24:08 |
Training paces at 1:30/100 m
Derived from your 1:30/100 m race pace using the same formula as the Swim Pace Calculator.
| Easy (warm-up / recovery) | 1:43/100 m |
| Aerobic base | 1:35/100 m |
| Threshold | 1:26/100 m |
| Build sets | 1:21/100 m |
| Sprint intervals | 1:17/100 m |
| Lap pace (25 m pool) | 0:23/lap |
Try a different time for 2 km
Want to calculate a different pairing? Open the Swim Pace Calculator to enter any distance and time, see pool and open-water splits, and build your training zones.