When will I die?
A free death clock with the receipts: 10 quick questions, then your estimated death date, the weeks you have left, and exactly which studies moved the number. No signup, no app, recalculated live.
When were you born?
Method: baseline from the US Social Security Administration Period Life Table (2021), lifestyle adjustments from peer-reviewed cohort studies via the Gompertz model (Spiegelhalter, BMJ 2012). Statistical estimate for education, not medical advice and not a prophecy. Prefer the raw grid? See your life in weeks or the longevity lifestyle blender.
How does this death clock work?
Your baseline comes from the U.S. Social Security Administration Period Life Table, the same actuarial data used elsewhere on this site. The quiz then adds or subtracts years using published cohort studies on smoking, exercise, sleep, diet, alcohol, body weight, stress, and social connection, combined additively as an approximation of a Gompertz-consistent mortality-hazard shift (the same framing David Spiegelhalter popularized in "Using speed of ageing and 'microlives' to communicate the effects of lifestyle on mortality," BMJ, 2012). Every factor's source is shown as you answer it.
Is a death clock accurate?
No death clock can predict an individual's death. This one reports the statistical life expectancy for someone with your profile, which is the honest version of the answer. Roughly half of people outlive their estimate, by definition of what a median or mean estimate means. Treat it as a planning number and a motivator, not a prophecy.
What increases life expectancy the most?
In the underlying studies: not smoking (about 10 years versus a current smoker), regular exercise (up to roughly 4.5 years), 7-8 hours of sleep, moderate-to-no alcohol, a whole-food diet, a healthy body weight, lower chronic stress, and strong social connection each show a measurable association with longer life expectancy in published research. The quiz shows the years attached to each answer as you go.
Is this a substitute for medical advice?
No. It is a statistics-based educational tool. For anything about your actual health, see a clinician.