Aerobic Threshold Calculator

Determine your aerobic threshold for optimal Zone 2 training and endurance development.

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Important Health Disclaimer

This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.

For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.

Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.

Not a substitute for professional medical advice

Your Parameters

years
bpm

Measured at complete rest

bpm

If you have lab test results

Aerobic Threshold

138

beats per minute

Range: 133 - 143 bpm

% Max HR
73%
% HRR
60%
MAF HR
150 bpm
Est. Lactate
2 mmol/L

Aerobic Threshold Training

Zone 2 range: 132 - 151 bpm

Corresponds to ~2 mmol/L blood lactate

Can maintain conversation while exercising

Burns primarily fat for fuel

Builds mitochondrial density

Recommended: 80% of training time

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sources

  • World Health Organization (WHO) — Global health metrics, disease classification, and nutritional standards. who.int
  • Centers for Disease Control and Prevention (CDC) — Health statistics, BMI guidelines, and disease prevention data. cdc.gov
  • National Institutes of Health (NIH) — Medical research, clinical guidelines, and health calculators. nih.gov
  • Mayo Clinic — Clinical health information, disease reference, and wellness guidance. mayoclinic.org

For a complete list of all references used across the site, visit our full sources page.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: WHO Health Metrics Standards

by World Health Organization

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.