Swim Training Zone Calculator
Generate 6 swim training zones (recovery to sprint) from your Critical Swim Speed (CSS) pace per 100m.
CSS Pace
1:30
Swim Zones
Z1 Recovery: 1:57 per 100m
Z2 Endurance: 1:43 per 100m
Z3 Tempo: 1:35 per 100m
Z4 Threshold (CSS): 1:30 per 100m
Z5 VO2 Max: 1:26 per 100m
Z6 Sprint: 1:17 per 100m