Training Tools
Critical Power
Calculate your physiological threshold (CP) and anaerobic work capacity (W′) using the 2-parameter model.
Test Intervals
Enter your best efforts for different durations.
Critical Power (CP)
— W
Sustainable threshold power
W′ (Anaerobic)
— kJ
Energy above threshold
Model Fit (R²)
—
Statistical accuracy (1.0 is perfect)
Performance Predictor
Estimate your max power for any duration based on your CP model.
MINUTES
SECONDS
PREDICTED POWER
— watts