Biological Age Calculator

Biological age is a measure of how well or poorly your body is functioning relative to your chronological age. Unlike chronological age, which simply counts years since birth, biological age reflects factors like lifestyle, genetics, and environmental exposures that influence how quickly your cells and organs deteriorate.

This calculator provides an estimate based on well-established lifestyle risk factors identified in longevity research, including the Blue Zones studies and the Framingham Heart Study. It is not a clinical diagnostic tool. For a precise biological age measurement, consider DNA methylation-based tests such as TruDiagnostic or Elysium Index.

Major factors include physical activity, sleep quality, diet, stress levels, smoking status, alcohol consumption, BMI, social connections, and chronic disease burden. Research from Blue Zones and large epidemiological studies consistently identifies these as key determinants of healthspan.

Research suggests that lifestyle changes may help slow or partially reverse biological aging. Studies on exercise, diet (particularly Mediterranean and plant-based diets), stress reduction, and sleep optimization have shown measurable reductions in epigenetic age markers.

DNA methylation tests (epigenetic clocks) directly measure molecular changes in your DNA to estimate biological age. This calculator uses lifestyle and health factors as proxies for those molecular changes. While less precise, it provides a free, instant estimate and identifies areas for improvement.