PhenoAge Biological Age Calculator
Calculate your biological age based on health metrics and lifestyle factors using the PhenoAge algorithm, which estimates your body's physiological age compared to your chronological age.
How to Use This Calculator
- Enter your chronological age in years
- Input your BMI (weight in kg divided by height in meters squared)
- Enter your blood pressure readings (systolic and diastolic)
- Provide your cholesterol and blood glucose levels from recent blood tests
- Indicate your smoking status and exercise frequency
- Click Calculate to see your biological age estimation
Formula Used
Biological Age = β₀ + β₁×Age + β₂×BMI + β₃×SBP + β₄×DBP + β₅×Cholesterol + β₆×Glucose + β₇×Smoking + β₈×Exercise
Where:
- β₀-β₈ = Coefficients derived from the PhenoAge algorithm
- Age = Chronological age in years
- BMI = Body Mass Index
- SBP = Systolic Blood Pressure
- DBP = Diastolic Blood Pressure
- Cholesterol = Total cholesterol level
- Glucose = Fasting blood glucose level
- Smoking = Smoking status (categorical variable)
- Exercise = Exercise frequency in days per week
Example Calculation
Real-World Scenario:
A 45-year-old individual wants to understand their biological age. They have a BMI of 26, blood pressure of 130/85, cholesterol of 220 mg/dL, glucose of 95 mg/dL, smokes 10 cigarettes daily, and exercises 2 days per week.
Given:
- Chronological Age = 45 years
- BMI = 26
- Systolic BP = 130 mmHg
- Diastolic BP = 85 mmHg
- Cholesterol = 220 mg/dL
- Glucose = 95 mg/dL
- Smoking = 10 cigarettes/day
- Exercise = 2 days/week
Calculation:
Using the PhenoAge algorithm with these parameters, the biological age is calculated to be approximately 52 years.
Result: Biological Age: 52 years (7 years older than chronological age)
Why This Calculation Matters
Practical Applications
- Health risk assessment and prevention planning
- Personalized lifestyle modification recommendations
- Monitoring the effectiveness of health interventions
- Early detection of accelerated aging patterns
Key Benefits
- Provides a more comprehensive health picture than chronological age alone
- Helps identify areas for health improvement
- Motivates positive lifestyle changes
- Can guide healthcare decisions and preventive measures
Common Mistakes & Tips
Frequently Asked Questions
References & Disclaimer
Medical Disclaimer
This PhenoAge Biological Age Calculator is for informational purposes only and should not be considered medical advice. The results are estimations based on the PhenoAge algorithm and your input data. Always consult with qualified healthcare professionals for medical advice, diagnosis, and treatment. Individual results may vary, and this calculator does not replace professional medical assessment.
References
- Horvath S. DNA methylation-based estimator of chronological age. - Original PhenoAge research paper
- Lu AT, et al. DNA methylation GrimAge strongly predicts lifespan and healthspan. - Related aging research
- Levine ME. Evaluation of biological aging theories using methylation data. - Biological aging research
Accuracy Notice
This calculator provides estimations based on the PhenoAge algorithm and input data. Accuracy depends on the quality and recency of your health measurements. Results should be interpreted as general health indicators and not as definitive medical diagnoses. Individual variations and other factors not included in this calculator may affect biological age.
About the Author
Kumaravel Madhavan
Web developer and data researcher creating accurate, easy-to-use calculators across health, finance, education, and construction and more. Works with subject-matter experts to ensure formulas meet trusted standards like WHO, NIH, and ISO.