Death Clock: your statistical time left
Change any answer and the clock, graphs and share card update at once. Start from the average American, then add what is true for you.
A statistical estimate for people like you, not a prediction about one person. Calculated in your browser; nothing is saved.
Chance of being alive at each age
Chance of reaching
What could add time
Years gained if you changed one thing, with everything else as entered.
Your years at a glance
Each square is a year. Dark squares are behind you, amber squares are the expected years left, pale squares fall beyond the expected age.
Expected time left, counted another way
Rounded from the expected remaining time. Heartbeats assume an average of 70 beats a minute.
How deaths are shared among leading causes
Share of deaths from the ten leading U.S. causes across the ages you are most likely to die in, tilted by your answers. A population pattern, not your personal risk.
Share your result
If this feels heavy
Numbers about death can stir up a lot. You can close this page whenever you like. If you are struggling, in the U.S. you can call or text 988 any time, and findahelpline.com lists services in other countries.
What a death clock actually shows
A death clock counts down to the date that a person's statistical life expectancy points to. It starts from official mortality rates for people of your age and sex, then adjusts them for the habits and health conditions you enter. The result is an average for people like you, not a forecast for one person: some will live well past the date shown and some will not reach it.
The starting point is the U.S. Social Security Administration period life table for 2023. At birth it gives 75.8 years for males and 81.1 years for females; at age 40 the remaining expectancy is 38.6 and 42.6 years. Those figures are the baseline you see when every answer is left on its default.
How the estimate is built
1. Baseline. The table gives the chance of dying within a year at every age, separately for males and females (or the average of the two). 2. Adjustment. Each answer you give multiplies that yearly risk by a relative-risk figure taken from published studies. A question left on "Typical American" is treated as unknown and averaged over the mix of habits and conditions found in the U.S. population, and the baseline is solved so that a person with nothing answered reproduces the SSA table exactly. Effects weaken after age 60, fade slightly over the decades ahead because habits and health change, and are capped. 3. Survival curve. Adjusted yearly risks are chained into the chance of being alive at each future age, which gives the expected age, the median and the middle 50% range. 4. Causes. The share of deaths from each leading cause at each age (CDC, 2024) is weighted by when you are most likely to die and tilted by the factors you chose.
Why skin colour and hair colour do not change the result
The appearance options only draw the avatar on your share card, and an older version of it at your expected age. Skin tone and hair colour have no reliable effect on how long a person lives, so the calculator does not use them. Sun exposure and skin cancer risk matter for health, but they are not captured by colour alone.
Limits you should know about
The table describes the U.S. population in 2023, so it will be less accurate in other countries. Relative risks come from large studies of groups and overlap in real people, so conditions are combined by adding their excess risk rather than multiplying it. Self-reported answers are rough, medicine keeps improving, and a period table assumes today's death rates stay fixed. The cause-of-death panel is shown as a share of the ten leading causes for each age group and cannot say what will happen to any one person. This is not medical advice and not a substitute for a doctor.
Privacy and sources
Everything is calculated in your browser. Your age, height, weight and health answers are not sent to this site and are not stored. A share link includes only what you choose to include.
Sources: U.S. Social Security Administration, Actuarial Life Table, 2023 period life table (2026 Trustees Report); CDC WISQARS, 10 Leading Causes of Death by Age Group, United States, 2024. Relative risks are rounded from published work including Jha et al. (New England Journal of Medicine, 2013) on smoking, the Global BMI Mortality Collaboration (The Lancet, 2016), Arem et al. (JAMA Internal Medicine, 2015) on physical activity, the Emerging Risk Factors Collaboration (2011) on diabetes, Holt-Lunstad et al. (PLoS Medicine, 2010) on social relationships and Cappuccio et al. (Sleep, 2010) on sleep.
U.S. life expectancy by age (2023)
| Age | Males: years left | Females: years left | Males: chance of reaching 85 | Females: chance of reaching 85 |
|---|---|---|---|---|
| 20 | 56.7 | 61.7 | 36% | 50% |
| 30 | 47.5 | 52.1 | 37% | 50% |
| 40 | 38.6 | 42.6 | 38% | 51% |
| 50 | 29.9 | 33.5 | 39% | 52% |
| 60 | 21.8 | 24.7 | 42% | 54% |
| 70 | 14.7 | 16.8 | 49% | 60% |
| 80 | 8.5 | 9.8 | 70% | 77% |
Source: U.S. Social Security Administration, 2023 period life table. Baseline before any habit or health adjustment.
Relative risks used for habits and conditions
| Factor | Option | Relative mortality |
|---|---|---|
| Smoking | Never smoked | 1× |
| Former smoker | 1.35× | |
| Current smoker | 3× | |
| Alcohol | None or light (up to 7 drinks a week) | 1× |
| Moderate (8 to 14 a week) | 1.05× | |
| Heavy (15 or more a week) | 1.5× | |
| Body mass index | Under 18.5 | 1.4× |
| 18.5 to 24.9 | 1× | |
| 25 to 29.9 | 1× | |
| 30 to 34.9 | 1.25× | |
| 35 to 39.9 | 1.6× | |
| 40 or more | 2.2× | |
| Physical activity | Mostly inactive | 1× |
| Some (under 150 minutes a week) | 0.85× | |
| Meets guidelines (150 to 300 minutes) | 0.72× | |
| High (over 300 minutes) | 0.68× | |
| Usual sleep | Under 6 hours | 1.15× |
| 6 to 9 hours | 1× | |
| Over 9 hours | 1.2× | |
| Diet | Mostly processed food | 1.2× |
| Mixed | 1× | |
| Mostly whole foods and plants | 0.85× | |
| Close relationships | Often lonely, few close ties | 1.25× |
| Some close ties | 1× | |
| Strong close ties | 0.9× | |
| Health conditions | High blood pressure | 1.25× |
| Diabetes | 1.9× | |
| Heart disease or past heart attack | 1.9× | |
| Past stroke | 2× | |
| Cancer treated in the last 5 years | 1.8× | |
| COPD or chronic lung disease | 2× | |
| Chronic kidney disease | 1.7× | |
| Cirrhosis or chronic liver disease | 2.5× | |
| Depression or anxiety | 1.3× |
Each figure is relative to the first option in its group. It weakens after age 60 and fades slightly over decades. Conditions are combined by adding their excess risk, which is capped. Unanswered questions are averaged over the U.S. mix.
Frequently asked questions
What is a death clock?
A death clock is a countdown to the date that your statistical life expectancy points to, worked out from your age, sex, health and lifestyle. It describes an average for people like you, not a prediction about one person.
How accurate is this death clock?
It is accurate as a statistical average and unreliable for any individual. Even with perfect information, the middle half of people like you die across a span of roughly 15 years, which is why the page shows a range as well as one date.
What data does the calculator use?
Mortality rates from the U.S. Social Security Administration 2023 period life table, relative risks rounded from published studies for each habit and condition, and CDC 2024 counts of deaths by cause and age group.
Do skin colour or hair colour change my result?
No. They only draw the avatar on your share card. Neither has a reliable effect on lifespan, so they are not part of the calculation.
How much does smoking change the result?
A lot. Large studies find current smokers lose about a decade of life on average. The calculator applies a relative risk of 3 for current smokers and 1.35 for former smokers, weaker at older ages, so quitting is one of the biggest changes you can test.
Is my information saved or sent anywhere?
No. The calculation runs in your browser and nothing you enter is sent to this site or stored. A share link only includes your health answers if you tick the box to add them.
How should I read the "how it might end" panel?
It shows how deaths from the ten leading U.S. causes are shared across the age groups you are likely to die in, tilted by the factors you chose. It is a population pattern, not your personal risk of any one cause, and it never lists self-harm as a cause.
Why does the clock tick if it is only an estimate?
The seconds show time passing against the estimate. The date it counts toward is the point where your expected remaining lifetime ends; half of people like you will live beyond the median shown.
Why do women have a higher life expectancy than men?
In the 2023 U.S. table, female life expectancy at birth is 81.1 years against 75.8 for males. Higher death rates among men at nearly every age, from injuries to heart disease, account for the gap.
Can I outlive the date the clock shows?
Yes. The date is an average, so a large share of people live past it. The graph shows the chance of being alive at each age, including 90 and 100.
Does it work outside the United States?
You can use it anywhere, but the baseline is U.S. data. Countries with different death rates will have different results, so treat the figure as a rough guide.
What if this makes me feel anxious or low?
You can close the page at any time. If thoughts about death feel heavy, talking to someone helps. In the U.S. you can call or text 988, and findahelpline.com lists services in other countries.