Evidence-based longevity planning

Scientific Life Expectancy Calculator

Take the 40-question, 10 minute Living to 100 life expectancy calculator to estimate your longevity and review the daily health factors that may shape healthy aging.

The quiz combines family history, lifestyle, and health-related answers to generate personalized longevity feedback you can revisit over time.

TAKE THE CALCULATOR

Most people finish in about 10 minutes.

  • Personalized feedback for each of your answers
  • A personalized to-do list for you and your physician
  • Research-informed suggestions that may help you add healthy years
  • The option to track your answers and return later to compare results

Before viewing and saving your full results, you will be asked to create an account.

Dr. Thomas Perls, MD, MPH

Created by Dr. Thomas Perls, founder and director of the New England Centenarian Study.

Designed by Dr. Thomas Perls, MD, MPH

Thomas Perls MD, MPH is the founder and director of the New England Centenarian Study, the largest study of centenarians and their families in the world.

Living to 100 turns that research into a practical longevity quiz that highlights the habits, health signals, and family patterns most closely tied to healthy aging.

Learn more about the calculator | Contact Dr. Perls

How the calculator works

  1. Answer 40 questions. Share information about your family history, health, and everyday habits.
  2. Review your longevity estimate. See how the calculator weighs the factors connected to longer and healthier lives.
  3. Get practical next steps. Use your personalized feedback and to-do list to identify areas worth discussing with your physician.
What people say about the calculator

Thanks for providing this interesting site - it's good to know how one is getting on! I am going to suggest that my husband does the questionnaire - it might frighten him into giving smoking up, and my daughter might be encouraged to stop her bad eating habits!

I.M.

Just this week, I'm announcing my retirement at work - effective in June - and it was terrific to have a cheery prognostication of nearly thirty years to enjoy it in! Your test was easy and fun to take and encourages me to continue doing what I do well and to address those areas where I know I could improve.

J.Y.

I found this very enlightening and encouraging! As a school nurse, I will recommend it to our staff.

K.H.

Life Expectancy Calculator FAQ

How accurate is a life expectancy calculator?

The calculator provides an educational estimate based on the answers you share and published longevity research. It cannot guarantee how long you will live and it should not replace advice from your physician.

What factors affect life expectancy?

The quiz looks at everyday health habits, family history, medical factors, and lifestyle choices that research has linked to longevity and healthy aging.

How long does the calculator take?

Most people finish the 40 questions in about 10 minutes.

Do I need an account to see my results?

You can begin the quiz right away. Before viewing and saving your full personalized results, you will be asked to create an account.

Is this calculator medical advice?

No. Living to 100 is for educational purposes only. It is designed to help you understand longevity-related factors and start informed conversations with your physician.

Important note

Living to 100 is for educational purposes only and should not be used as a substitute for medical advice, diagnosis, or treatment.

Read our Privacy Statement, Disclaimer, and Legal Statement before starting the calculator.

Professional education partner
Society of Certified Senior Advisors

The Society of Certified Senior AdvisorsTM grants the Certified Senior Advisor (CSA)® designation. The Society of CSA is an educational organization that provides an in-depth certification program on senior issues to professionals who work with seniors.