Longevity Calculator

Estimate your life expectancy from actuarial life table data plus lifestyle, health, and family history factors. See what may be adding or subtracting years instantly.

Age

Sex

Country

Smoking status

Exercise frequency

Alcohol consumption

Diet quality

Sleep (hours per night)

BMI range

Don't know your BMI? Calculate it →

Mental health

Social connections

Family longevity

Your estimated life expectancy

83.9 years

That's approximately March 2075

You have roughly 48.9 years remaining

Factor breakdown

Sorted by the biggest estimated impact on lifespan.

🟢 Exercise (moderate)+2.5 years

🟢 Diet (good)+2.0 years

🟢 Social connections (strong)+2.0 years

🟢 Alcohol (light)+0.5 years

Add years to your life

Exercise 5+ days per week could add up to 2.0 years

Improve your diet quality could add up to 1.5 years

Comparison

The average life expectancy for a 35-year-old male in United States is 76.9 years.

Your estimate is 7.0 years above average.

Life timeline

Years already lived, estimated remaining years, and where the population average lands.

■ Years lived: 35■ Estimated remaining: 48.9■ Average marker: 76.9

This calculator is for educational purposes only. It is not medical advice and cannot predict any individual's actual lifespan.

How to Use

Enter your age, sex, and country to set your baseline life expectancy.
Choose the lifestyle, sleep, BMI, and mental health options that best match your current situation.
Select any chronic conditions, then add your social connection and family longevity details.
Review your estimated life expectancy, the factor-by-factor breakdown, and the top changes that could add years.

Frequently Asked Questions

What is a longevity calculator?

A longevity calculator estimates your life expectancy based on your age, sex, lifestyle habits, health conditions, and family history. It uses actuarial life tables and published health research to project how long you might live.

How accurate is this life expectancy estimate?

This calculator provides an educational estimate based on population-level statistics and well-established health research. Individual outcomes vary greatly. It cannot account for accidents, environmental factors, future medical advances, or genetic conditions. Use it as a motivational tool, not a medical prediction.

What factors most affect life expectancy?

The biggest factors are smoking (can reduce life by 10+ years), physical activity (regular exercise adds 3-5 years), obesity (can reduce life by 3-6 years), chronic diseases such as diabetes and heart disease, social connections, and family genetics.

Can I really add years to my life?

Research consistently shows that lifestyle changes can significantly impact longevity. Quitting smoking, regular exercise, maintaining a healthy weight, strong social connections, and managing stress are among the most evidence-backed ways to increase life expectancy.

Where does the data come from?

The baseline life expectancy uses the U.S. Social Security Administration's 2022 Period Life Table. Adjustment factors are based on published epidemiological research from sources including the World Health Organization, The Lancet, and major longitudinal health studies.

Is this medical advice?

No. This calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician for health decisions.