Biological Age Calculator
Your chronological age is just a number. Your biological age reveals how old your body actually is on a cellular level - and unlike your birthdate, it’s a metric you can change.
Understanding BioAge
PhenoAge estimates your biological age based on clinical biomarkers, using the Levine et al. (2018) formula published in the journal Aging. A biological age lower than your chronological age suggests healthier aging.
Unlike your birth certificate, biological age is a dynamic metric that responds to your lifestyle choices - nutrition, exercise, sleep quality, and stress management all influence where you fall on the aging spectrum.
The formula processes 9 clinical blood biomarkers that are routinely measured in standard blood panels, converting them into a single, actionable number: your biological age.
Chronological Age
42 yrs
Fixed. Based on your birthdate.
Biological Age
36.4 yrs
Dynamic. Responds to your lifestyle.
5.6 years younger = Excellent biological aging
The Science
The PhenoAge formula uses biomarkers from a standard blood panel to estimate your rate of biological aging with peer-reviewed precision.
Albumin
Liver function and nutritional status - reflects your body's protein synthesis capacity
Creatinine
Kidney filtration efficiency - how well your kidneys clear metabolic waste
Glucose
Metabolic health and energy regulation - fasting blood sugar levels
C-Reactive Protein
Systemic inflammation - a sensitive marker of chronic low-grade inflammation
Lymphocyte %
Adaptive immune system strength - the proportion of your white blood cells that fight specific threats
Mean Corpuscular Volume
Average red blood cell size - an indicator of nutritional status and bone marrow function
Red Cell Distribution Width
Variation in red blood cell size - linked to cardiovascular risk and biological aging
Alkaline Phosphatase
Liver and bone metabolism marker - elevated levels may indicate organ stress
White Blood Cell Count
Innate immune system activity - your body's first line of defense against pathogens
Based on Levine, M. E. et al. “An epigenetic biomarker of aging for lifespan and healthspan.” Aging 10.4 (2018): 573–591.
5+ years younger
Excellent biological aging
2-5 years younger
Good biological aging
Within ±2 years
On track with your chronological age
2-5 years older
Room for improvement - lifestyle changes can help
5+ years older
Consider lifestyle and dietary interventions
Enter your clinical biomarker values from a recent blood panel to discover your biological age using the validated PhenoAge formula.
BioTRK is designed for educational health optimization and lifestyle maintenance. It is not a diagnostic medical device, and its insights do not substitute for professional medical advice, diagnosis, or treatment. The biological age calculation uses the PhenoAge formula (Levine et al., 2018) for educational purposes only. Always consult a qualified healthcare professional before making health decisions.