Anaerobic Threshold Heart Rate Calculator

Calculate anaerobic threshold (lactate threshold 2) heart rate — the maximal sustainable exercise intensity — from field tests or percentage of maximal heart rate.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate anaerobic threshold (lactate threshold 2) heart rate — the maximal sustainable exercise intensity — from field tests or percentage of maximal heart rate

Each component has a specific meaning:

  • Field tests or percentage of maximal heart rate — The field tests or percentage of maximal heart rate recorded for the scenario being assessed.

Note: Interpret the anaerobic threshold hr result against the thresholds and context described above.

How to Use

Enter the field tests or percentage of maximal heart rate for the scenario you are assessing. Calculate anaerobic threshold (lactate threshold 2) heart rate — the maximal sustainable exercise intensity — from field tests or percentage of maximal heart rate. Use the anaerobic threshold hr result to inform your calculation.

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Frequently Asked Questions