Lactate Threshold Calculator
Determine your lactate threshold for running, cycling, and endurance training optimization.
Test Parameters
years
bpm
bpm
Leave blank to estimate
Lactate Threshold HR
167
beats per minute
82% of HR Reserve
LT1 (Aerobic)
147 bpm
LT2 (Anaerobic)
167 bpm
Sustainable
40 min
Threshold Zone
159-172
Understanding Lactate Threshold
LT1: ~2 mmol/L lactate (aerobic threshold)
LT2: ~4 mmol/L lactate (anaerobic threshold)
Training at LT improves endurance performance
Elite athletes have LT at 85-92% HRmax