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Years are easy to ignore. Weeks are harder. Put in your age and see how many you’ve already spent, and roughly how many are left.
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Life expectancy is a population average, not a personal countdown. This calculator uses the Social Security Administration's 2023 period life table to estimate how many years remain at each age, then converts that figure into weeks. The Average option combines the male and female table values. Ages between published rows are estimated through interpolation.
Your result doesn’t account for your health, family history, income, location, medical care, habits, or random events. It can’t predict how long you’ll live. Use it for perspective: a concrete way to see time, decide what matters, and start the conversations or planning you’ve been putting off.
Source: Social Security Administration, Period Life Table, 2023, as used in the 2026 Trustees Report. Figures between listed ages are interpolated.
The short answer
Take your age, set it against an average American lifespan, and count what's left in weeks instead of years. The number is smaller than you expect, and that's the point: years feel infinite and weeks don't. The counter below runs your number, and people print it, share it, and rearrange things because of it.
Reviewed August 2026
Before you start
Put in your age and see how many weeks you’ve already spent and roughly how many remain. Then share your number and ask what everyone else got. The number lands differently for everyone. Some people print it. Some people close the tab. Either way, the useful question is what the count changes about this week.
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