Swim Pace Calculator
2 km in 27 minutes is a pace of 1:21 per 100 m
Swimming 2 km in 27 minutes requires a pace of 1:21 per 100 m (13:30 per km / 21:43 per mile). This distance is a 2 km open-water benchmark.
At 1:21/100 m, each 25 m lap takes 0:20 and each 50 m length takes 0:41. 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 | 27 minutes |
| Pace per 100 m | 1:21 |
| Pace per km | 13:30 |
| Pace per mile | 21:43 |
Training paces at 1:21/100 m
Derived from your 1:21/100 m race pace using the same formula as the Swim Pace Calculator.
| Easy (warm-up / recovery) | 1:33/100 m |
| Aerobic base | 1:25/100 m |
| Threshold | 1:17/100 m |
| Build sets | 1:13/100 m |
| Sprint intervals | 1:09/100 m |
| Lap pace (25 m pool) | 0:20/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.