How does it work?
We mix official life-expectancy data for your age, sex and country with simple points for your lifestyle answers, then turn it into an estimate and a live countdown. The "how it works" section above explains each step.
How accurate is it?
It’s a fun estimate based on averages — not a real prediction. It can’t know your genes, your luck or your full health story, so treat the number as a friendly guide, not a fact.
Is this medical advice?
No. Nothing here is a diagnosis or medical advice. For anything about your real health, please talk to a doctor.
Can I really live longer?
Research says everyday habits — not smoking, moving more, eating well, sleeping enough and staying close to people — are strongly linked to longer life. The "add years back" tool shows the possible upside of each change.
Do you save my answers?
No. Everything is worked out inside your browser and kept only in memory. Your answers never leave your device and disappear when you close the tab.
What is "body age"?
It’s your real age moved up or down by your habits — a simple way to see if your choices are ageing you faster or slower than your birthday.
Can I use this as a retirement or Social Security life expectancy calculator?
Yes — the same estimate is the kind of figure retirement planners use: how many more years someone your age is likely to need income for. It’s built on the same US Social Security Administration actuarial life tables the SSA itself references, so it’s a reasonable starting point for retirement and Social Security planning, alongside advice from a financial professional.
What is an actuarial life table?
It’s the standard tool insurers, pension funds and Social Security use: for people of a given age and sex, it shows the odds of surviving to the next year and the average years left. This calculator starts from the same tables, then adjusts for your country and lifestyle.
What are my odds of living to 100?
Your full result includes an estimated probability of reaching 100 based on your age, sex, country and habits. Few people get there today, but healthy choices meaningfully improve the odds.
How old will I live to be?
No one can say for certain, but you can get a realistic estimate in a couple of minutes. Lifespan Check starts from official life-expectancy data for your age, sex and country, then adjusts for your lifestyle to show the age you might reach — with a live countdown and your odds of reaching 100.
How can I estimate my life expectancy?
Answer a few quick questions about your age, sex, country and daily habits. The calculator blends your answers with official actuarial and World Bank / WHO data to estimate your expected lifespan, your healthy years and your biological age — free and instantly.
Can I calculate my life expectancy based on my current age?
Yes. Your current age is the starting point — the calculator looks up the average years remaining for someone your age and sex in your country, then adjusts up or down for your lifestyle, so the estimate reflects where you are now rather than life expectancy at birth.
What is a life expectancy test?
A life expectancy test is a quick quiz that estimates how long you might live. Lifespan Check asks about your age, sex, country and everyday habits, then combines your answers with official actuarial and World Bank / WHO data to show your estimated lifespan, your healthy years and your biological age — free and private.
How long do I have left to live?
No one can know for sure, but the calculator gives you a realistic estimate of the years you may have ahead based on your age and lifestyle, shown as a live countdown. It is a hopeful guide meant to encourage healthy habits — not a medical prediction.
At what stage of life do most deaths happen?
In wealthier countries most deaths now cluster in the 70s and 80s, with the single most common age of death falling in the 80s. Very few people die young; the odds of reaching old age are higher than most people assume. The calculator shows where your own estimate lands and how healthy habits can push it later.
Which kind of exercise matters most once you pass 60?
For most people over 60 the highest-value habit is strength training two or three times a week. Preserving muscle protects balance, bone density and independence, and is closely linked to living longer — while walking and other cardio remain valuable, muscle loss is what tends to accelerate ageing after 60. This is general information, not medical advice; check with a doctor before starting.
How often do people outlive their own parents?
The great majority of people live longer than their parents did — average life expectancy has risen for generations, so most children outlive both parents. Losing a parent before your own death is the normal, expected order of life; the reverse is far rarer. Your family history still nudges the estimate, which is why the calculator asks about it.
Is there a validated life expectancy calculator for older adults or people in care?
This calculator uses population life tables plus lifestyle factors. It is built for general estimates in reasonably healthy adults, not for people who are seriously ill or living in a care home. For older adults with health problems, researchers have built and tested prognostic indices. One example is the Lee index (JAMA 2006): 12 self-reported questions on age, sex, health conditions and daily tasks, validated in about 8,000 US adults over 50 (C-statistic 0.82, where 1.0 is perfect and 0.5 is a coin toss). Another is a 10-year model built from 16 countries, including European ones (Suemoto 2017, C-statistic 0.76). Even these are imperfect: a 2012 JAMA review of 16 such indices found none reached 0.90, and only 2 had been tested by independent teams. Clinicians can find them on ePrognosis, run by the University of California San Francisco. They are meant to support a conversation with a doctor, not replace it. If you or someone close to you is facing a serious diagnosis, the care team is the best guide. This is an educational estimate, not medical advice.
