Biological Age Calculator
Estimate your biological age using the Levine PhenoAge algorithm, which analyzes 9 blood biomarkers to predict how old your body appears independent of your calendar age.
A biological age lower than your chronological age suggests better metabolic health. This algorithm was developed from NHANES data and validated against mortality outcomes.
Your biological age
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Frequently Asked Questions
Answers to common questions about this page and how to use what you find here.
This calculator is for educational use only and does not diagnose, treat, or replace advice from a qualified healthcare professional.
Biological age estimates how old your body appears based on biomarkers, independent of your calendar age. Someone who is 50 years old chronologically might have a biological age of 45 (healthier) or 55 (accelerated aging).
PhenoAge was developed by Morgan Levine and colleagues using NHANES data. It combines 9 blood biomarkers with chronological age to predict mortality risk, then converts that to a biological age estimate.
CRP (inflammation) and glucose have strong effects. High CRP and glucose increase biological age significantly. RDW (red cell distribution width) is also important and often overlooked.
Yes, in many cases. Reducing inflammation (lower CRP), improving blood sugar control, losing excess weight, exercising regularly, and improving sleep can all favorably shift these biomarkers over months.
PhenoAge correlates with mortality and disease risk at a population level, but individual results can vary based on acute illness, recent meals, hydration, and lab variability. Use it as a general indicator, not a precise measurement.