Estimate your life expectancy using lifestyle factors. Enter your age, sex, smoking status, activity level and general health to see an estimated lifespan and the years likely remaining.
Enter your current age, sex, smoking status, activity level and general health. The calculator starts from an average lifespan, then adjusts it up or down for each lifestyle factor to estimate your lifespan and the years remaining.
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A life expectancy calculator estimates how long you might live by starting from an average lifespan and adjusting for the lifestyle factors you can control — smoking, activity and overall health.
Lifespan = average base + activity adjustment + health adjustment + smoking adjustment
The base reflects average lifespan by sex; each lifestyle factor adds or subtracts years. It's a statistical estimate, not a prediction of your personal future.
It's a rough statistical model based on population averages, not a medical forecast. Genetics, healthcare, diet and many other factors also matter. Use it to see which habits help most, not as a prediction.
The factors here — not smoking, regular activity and good health — are among the strongest controllable predictors of longevity. Small, sustained changes add up over decades.