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The average person in the United States lives to around 79 years. But your personal estimate depends heavily on your age, sex, country, lifestyle, and health history. Our calculator adjusts for over 10 factors including smoking, exercise, sleep, diet, and chronic conditions to give you a personalised estimate. Run it in under 2 minutes.

A longevity calculator estimates how long you are likely to live based on your personal health profile. It starts with a country-level baseline from actuarial or WHO data, then adjusts for lifestyle factors like smoking, exercise, sleep, diet, and chronic conditions. Our longevity calculator uses WHO 2023 baselines for 190+ countries and adjustments informed by published research on each factor.

The average life expectancy in the United States is 79.1 years (WHO 2023): 76.4 years for males and 81.5 years for females. The US ranks 34th globally, below most other high-income nations.

The global average life expectancy at birth is approximately 73 years (WHO 2023). It ranges from 53 years in the Central African Republic to 89 years in Monaco. In high-income countries the average is around 80 to 84 years.

A 40-year-old in the United States has a remaining life expectancy of approximately 39 more years for men and 43 more years for women, based on CDC actuarial tables. Lifestyle factors can shift this significantly in either direction.

A 50-year-old American man has a remaining life expectancy of around 29 more years, while a 50-year-old American woman can expect roughly 33 more years, according to CDC life tables.

A 60-year-old in the US has a life expectancy of roughly 22 to 25 more years on average. A 60-year-old man is expected to live to around 82, while a 60-year-old woman to around 85.

Type 2 diabetes is associated with a reduction in life expectancy of approximately 6 to 10 years, depending on when it develops and how well it is managed. Cardiovascular complications are the primary driver of reduced longevity in diabetic patients.

Heart disease reduces life expectancy by approximately 7 to 10 years on average. The impact depends on type and severity. Effective management with medication, lifestyle changes, and monitoring can extend life significantly.

Obesity (BMI of 30 or above) is associated with a reduction in life expectancy of 3 to 10 years. Severe obesity (BMI 40 or above) carries the highest risk through increased rates of cardiovascular disease, type 2 diabetes, and certain cancers.

Heavy smokers lose an estimated 8 to 10 years of life expectancy compared to non-smokers. Even light smokers lose around 4 to 5 years. Quitting at age 30 recovers nearly all of this loss; quitting at 50 still adds around 6 years.

Yes. Regular vigorous exercise (5 or more times per week) is associated with an increase in life expectancy of approximately 3 to 4 years. Even moderate activity (3 to 4 times per week) adds around 2 years.

Consistently sleeping 7 to 9 hours per night is associated with the longest life expectancy. Sleeping under 6 hours is linked to a 2 to 3 year reduction in life expectancy through increased risk of cardiovascular disease, obesity, and metabolic dysfunction.

The average life expectancy in the United Kingdom is approximately 81.4 years (WHO 2023): 79.4 years for males and 83.1 years for females.

Canada's average life expectancy is approximately 82.3 years (WHO 2023). Canadian males average around 80.4 years and females around 84.4 years.

Australia has one of the highest life expectancies globally at approximately 83.4 years (WHO 2023). Australian males average around 81.3 years and females around 85.4 years.

Smoking (up to 8 fewer years), chronic conditions like heart disease (7 fewer years) or cancer (10 fewer years), physical inactivity (3 fewer years), and socioeconomic factors all have large impacts. Regular exercise and optimal sleep can each add 1 to 4 years.

Based on US actuarial tables, an 80-year-old American male has a median additional life expectancy of approximately 7 to 9 years. See our full analysis on the Trump life expectancy page.

Non-alcoholic fatty liver disease (NAFLD) is associated with a reduction in life expectancy of approximately 4 to 10 years depending on severity. Advanced NAFLD (NASH with fibrosis) carries a significantly higher mortality risk from cardiovascular disease and liver failure.

It produces a population-level statistical estimate, not a medical prediction. Individual outcomes vary significantly. Use it as a reflection tool, not a forecast.

Our calculator starts with the WHO 2023 baseline for your country, then applies evidence-based adjustments for roughly 10 lifestyle and health factors including smoking, exercise, diet, chronic conditions, sleep, stress, income, and more, each informed by published research on that factor.

Globally, women live roughly 5 years longer than men on average due to biological differences, lower rates of smoking and risk-taking behaviour, and greater healthcare engagement.

Yes. Quitting smoking, exercising 3 to 5 times per week, optimising sleep to 7 to 9 hours, and managing chronic stress are the highest-impact changes. Retake the quiz after lifestyle changes to see the estimated difference.

Monaco has the highest recorded life expectancy at 89.4 years, followed by Hong Kong (85.8) and Japan (84.3). See the full country rankings table.

Life expectancy is total years lived. Healthy life expectancy (HALE) measures years lived in good health, free from serious disease or disability. Globally, HALE is about 63 years, roughly 10 years less than total life expectancy.

No. All calculations happen locally in your browser. We never store, log, or transmit your answers.