Biological vs Chronological Age Gap Visualizer
Enter 9 biomarkers from a standard blood panel and see your biological age estimate using the Levine PhenoAge formula (2018). Compare it to your chronological age, visualize the gap, and get a relative 10-year mortality ratio — all client-side, private, and free.
Your Blood Panel
What is Biological Age (PhenoAge Method)?
Biological age is an estimate of how old your body appears on the inside based on physiological biomarkers, not how many birthdays you have had. The PhenoAge method, developed by Dr. Morgan Levine and colleagues at Yale in 2018, uses nine common blood markers to predict mortality and morbidity risk better than chronological age alone. A person who is chronologically 50 but has a PhenoAge of 43 has a lower 10-year mortality risk than an average 50-year-old peer.
Reading Your Biomarker Inputs
Each biomarker reflects a different biological process. Albumin reflects liver synthesis and nutrition. Creatinine reflects kidney function and muscle mass. Glucose reflects insulin sensitivity. CRP reflects chronic inflammation. Lymphocyte % and WBC reflect immune balance. MCV and RDW reflect red-cell health and stress. Alkaline phosphatase reflects liver and bone turnover. Values at the extremes of the reference range push PhenoAge up.
Reducing Your Bio-Chrono Gap
Interventions with the strongest evidence for lowering PhenoAge include Zone-2 cardio (150 minutes a week), resistance training twice weekly, 7–9 hours of sleep, protein intake around 1.6 g/kg body weight, omega-3 supplementation, and anti-inflammatory diets (Mediterranean, DASH). CRP, glucose, and WBC respond within 8–12 weeks to exercise and diet changes. Retest your panel every 3–6 months to track movement.
Beyond PhenoAge: DunedinPACE and GrimAge
PhenoAge is the easiest epigenetic-adjacent clock to self-calculate because it only needs a standard blood panel. More advanced clocks — DunedinPACE, GrimAge, OMICmAge — use DNA methylation patterns and require specialized saliva or blood tests (TruDiagnostic, Elysium Index). Those clocks capture pace of aging more precisely but cost $200–$500. PhenoAge remains the best free screening tool, and this calculator follows Levine 2018 (PMID 29676998).