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How long will you live?

Average life expectancy

Our methodology is based on CDC life tables.

Women84.844.8 years left
Men80.840.8 years left

Select your age

40

Get my personalized estimate →

Add your habits to see how they impact your lifespan. Estimates based on peer-reviewed research of 40M+ participants.

Free. 2 minutes. No card. No email.

Completely free.

A dozen questions, then all of this:

  • Your estimated lifespan
  • How you compare against the average
  • Your biological age
  • Your potential
  • Every habit ranked by years
  • Your longevity archetype
  • Your life in months
  • Your top three priorities
  • Your projection
  • A printable 90-day plan
  • Compare with the people you love
  • The full habit library
  • Save your results by email
  • Re-measure anytime
A piece of the example report. The summary. Alex, your body is living about two years older than your age. Estimated lifespan and biological age, side by side. A piece of the example report. Your shape. The longevity archetype The Coaster, drawn across ten habits. A piece of the example report. Your life in months, drawn as dots, with the months each lever could add. A piece of the example report. Your levers. What each habit is doing to your biological age today. A piece of the example report. Your projection of biological age, on the current path and at your potential. A piece of the example report. Your priorities, starting with priority one, exercise. A piece of the example report. The rest of your levers, each with the years it could add. A piece of the example report. Your 90-day plan, a row for each week with boxes to check.

See a full report →

Longevity is better together.

Share and compare with the people you love. See how much time you have left together, then add to it.

A Longlevity share card on the brand gradient: Maria & Mom’s hangouts left, 988, once a week for about 19 more years.
A Longlevity share card on the brand gradient: Vera’s road ahead to a potential of 90.4, an estimated lifespan of 88.3 and a biological age of 33.7.
A Longlevity share card on white: Alex’s life in months as a grid of dots, 516 lived, 434 ahead, and 68 on the table.

Example shareable image

How long will you live?

Get my personalized estimate →

Free. 2 minutes. No card. No email.

Common questions

Is it really free?

Yes. The assessment, your estimated lifespan, your biological age, the full report with its 90-day plan, the habit library, re-measuring, sharing and comparing. No account needed. If it was worth something to you, there is a way to support Longlevity at the end of your report. It unlocks nothing.

How accurate is it?

It’s an estimate, not a prediction. The numbers come from U.S. population research covering 40M+ people and are kept deliberately conservative. Things we don’t measure, like genetics and medical history, matter too, so treat the result as a direction, not a verdict. We review new research every month and version every change on the methodology page.

How long does it take?

About 2 minutes. Set your age on the slider and it carries over. A dozen questions, with your estimated lifespan updating live as you go.

Do you sell my data?

Never. We don’t sell or share your data. Longlevity is free for everyone, and readers who find it worth something can support it.