Biological Age Calculator

This free biological age calculator estimates how old your body acts compared to your actual age, based on lifestyle factors that research links to healthy aging — physical activity, sleep, diet, smoking, alcohol, stress, body weight, social wellbeing, resting heart rate and family longevity. Each answer nudges your estimate up or down from your chronological age. This is an educational estimate, not a medical test like an epigenetic clock or blood biomarker panel, and it can’t diagnose anything. For real health concerns, talk to a doctor.