Quitting later in life
Smoking for 50 years
Fifty years has cost a lot. Stopping now still gives some of it back.
Written by Lee H. Last reviewed 7 October 2026.
Someone who started at 18 and has smoked for fifty years is 68 now. Most writing about quitting is aimed at people half that age. This page is for the person who has done the full fifty and wants a straight number for what it cost and what stopping today returns.
What fifty years has cost
Each cigarette costs a man about 17 minutes of life expectancy and a woman about 22, according to a 2025 study in Addiction. Fifty years at 20 a day is about 365,000 cigarettes. The model behind this site caps the total near the ten or so years lifetime smokers lose on average, so the figures below level off instead of growing without limit.
| Who | Years lost | Years that can come back |
|---|---|---|
| Man, 10 a day | 5.90 | 1.36 |
| Man, 20 a day | 10.46 | 2.40 |
| Woman, 10 a day | 7.64 | 1.76 |
| Woman, 20 a day | 11.35 | 2.61 |
What quitting at 68 still returns
The share of the loss that can come back falls with age. A 2013 study in the New England Journal of Medicine measured it up to age 64, where it was about 40%. Past that, this site continues the same slope down to a floor of 20%, and at 68 it reads about 23%. That part is an extrapolation, and it is said plainly on the methodology page.
For the man at 20 a day, 23% of ten and a half years is about 2.4 years. About half a year of that comes back in the first smoke-free year, and about 1.65 years within five.
After fifty years, the first smoke-free year is still the one that returns the most.
What this cannot tell you
These are population averages. They know nothing about your lungs, your heart or your family history. The baseline is the average life expectancy for someone your age and sex, smokers included, so it is not a never-smoker figure.
The figures above are a motivational estimate built from population averages. They are not a prediction about you, they do not diagnose, treat or prevent any condition, and this is not medical advice. Talk to a doctor or a quitline about stopping smoking. In the US, that is 1-800-QUIT-NOW.
Sources
- Jackson, S. E., Jarvis, M. J. and West, R., "The price of a cigarette: 20 minutes of life?", Addiction, 2025.
- Jha, P. et al., "21st-Century Hazards of Smoking and Benefits of Cessation in the United States", New England Journal of Medicine, 2013.