Health Calculators

Life Expectancy Estimator

Get a general, simplified life expectancy estimate based on your current age and two major lifestyle factors: smoking and regular exercise.

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About this life expectancy estimator

This is a simplified wellness tool, not an actuarial or medical instrument, built to illustrate in a general way how major lifestyle factors are associated with life expectancy statistics at a population level.

How life expectancy estimator works

Starting from a general population baseline, the estimate adjusts down for smoking status and adjusts based on regular exercise, reflecting commonly cited population-level associations between these factors and average lifespan.

Common uses

  • Getting a general sense of how lifestyle factors relate to life expectancy statistics
  • Motivating a lifestyle change by visualizing its general association with longevity
  • Educational exploration of population health statistics

How to use this tool

  1. Enter your current age.
  2. Indicate whether you smoke.
  3. Indicate whether you exercise regularly.
  4. See a general life expectancy estimate.

What to know before using it

This is a general wellness indicator built on simplified population averages, not a personal medical or actuarial prediction. It cannot account for genetics, specific health conditions, or your actual medical history, consult a healthcare professional for anything related to your real health outlook.

Privacy and browser-first processing

This tool runs entirely in your browser using JavaScript. Nothing you enter is uploaded or stored.

Frequently asked questions

Is this a medical or actuarial prediction?

No, this is a simplified general wellness estimate based on population-level statistics, not a personal medical or insurance-grade prediction. It cannot know your actual health history or genetics.

Why does smoking have such a large impact in this estimate?

Smoking is one of the most well-documented factors associated with reduced average life expectancy at a population level in public health research, this estimate reflects that general association, not a certainty for any individual.

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