Biological Age Calculator

Biological age reflects how well your body functions relative to your chronological age. It is influenced by genetics, lifestyle, and environmental factors. Someone who exercises regularly, eats well, and manages stress may have a biological age younger than their actual age. Biological age can be measured through blood biomarkers, DNA methylation, or estimated through lifestyle questionnaires.

Questionnaire-based estimates capture approximately 30% of biological aging variance according to research published in The Lancet Healthy Longevity (ENABL Age, 2023). They are directionally useful for identifying lifestyle factors that accelerate or slow aging, but cannot replace clinical biomarker testing (such as epigenetic methylation analysis) for precise measurement.

Research suggests some biological age markers can be improved through lifestyle changes. A pilot randomized controlled trial (Fitzgerald et al., Aging, 2021) found an 8-week diet and lifestyle program produced a 3.23-year reduction in epigenetic age compared to controls. However, this was a small study and results vary. The most evidence-backed interventions are regular exercise, not smoking, maintaining healthy BMI, and quality sleep.