Life Expectancy Estimator

Enter your age, sex, and lifestyle habits to get an estimate of your remaining life expectancy based on US actuarial data.

Use the Life Expectancy Estimator

Your Profile

Height & Weight (for BMI)

Fill in your profile on the left and click Estimate.

Summary

This life expectancy estimator combines US Social Security Administration period life table baselines with published epidemiological adjustment factors for four modifiable lifestyle variables: smoking status, body mass index, physical activity level, and diet quality. The result is an estimated age at death and remaining years — useful for retirement planning, health motivation, or general curiosity. All calculations run in your browser; no data is sent to any server.

How it works

  1. Enter your current age (18–99) and biological sex.
  2. Select your smoking status: never, former, or current smoker.
  3. Enter your height and weight so BMI can be computed automatically.
  4. Choose your typical weekly exercise level.
  5. Choose your overall diet quality.
  6. The estimator applies each lifestyle factor as an additive year adjustment to your SSA baseline remaining life expectancy.

Use cases

  • Estimate how many years of retirement savings you may need.
  • Understand the quantified impact of smoking or obesity on longevity.
  • Set a health baseline before starting a fitness or diet program.
  • Use in financial planning to model longevity risk.
  • Compare estimated longevity before and after a lifestyle change.
  • Educate patients or students on modifiable risk factors for mortality.

Frequently Asked Questions

Last updated: 2026-06-14 · Reviewed by Nham Vu