Quit Smoking Calculator
Count every cigarette you didn't smoke, every dollar you didn't spend, and every health milestone your body has hit since quitting.
Next milestone
Health recovery timeline
- 20 minutes Heart rate drops
Your heart rate and blood pressure begin to return to normal.
- 8 hours Oxygen levels recover
Carbon monoxide levels in your blood drop by half. Oxygen rises.
- 24 hours Lower heart attack risk
Your chance of having a heart attack starts to decrease.
- 48 hours Taste & smell return
Nerve endings start to regrow. Taste and smell sensitivity improve.
- 72 hours Nicotine fully cleared
Nicotine has left your body. Bronchial tubes relax — breathing gets easier.
- 2 weeks Circulation improves
Circulation and lung function noticeably better. Walking and exercise feel easier.
- 1 month Lungs start to clear
Cilia in your lungs begin to recover. Coughing and shortness of breath decrease.
- 3 months Lung function +10%
Lung function can improve by up to 10%. Energy and stamina increase.
- 9 months Less coughing
Coughing, sinus congestion, fatigue and shortness of breath continue to decrease.
- 1 year Heart disease risk halved
Your risk of coronary heart disease is half that of a smoker.
- 5 years Stroke risk normalises
Risk of stroke can be reduced to that of a non-smoker (5–15 years after quitting).
- 10 years Lung cancer risk halved
Your risk of dying from lung cancer is about half that of a smoker.
- 15 years Heart of a non-smoker
Your risk of coronary heart disease is the same as a non-smoker's.
What your savings could buy
Keep going — your first reward unlocks at $4.
About the Quit Smoking Calculator
Quitting smoking is one of the highest-impact health decisions you can make — but the benefits build over months and years, and they're easy to lose sight of in the day-to-day struggle of a craving. This calculator gives you something concrete to hold onto: the exact number of cigarettes you haven't smoked, the money you haven't spent, the time you've reclaimed, and the health milestones your body has hit so far.
Money savings are computed from your daily consumption and your local pack price. The health timeline is based on widely-cited benchmarks from the U.S. Surgeon General, the American Cancer Society and the NHS — physiological recovery happens fast in the first 72 hours (heart rate, oxygen, nicotine clears), more gradually over the first year (lung function, circulation), and continues for over a decade (stroke risk, lung cancer risk).
How to Use the Quit Smoking Calculator
- Enter your quit date. This is the date of your last cigarette. If you stopped this morning, use today's date.
- Enter cigarettes per day. Use your typical pre-quit average — 20 is one full pack, 10 is half a pack.
- Enter cigarettes per pack. 20 is standard in most countries; 25 is common in Australia and parts of Canada.
- Enter your local pack price. Use the price you actually paid before quitting, in your own currency. Update the currency symbol if needed.
- Watch your progress. The page updates in real time — every minute is another cigarette not smoked, every day brings you closer to the next health milestone.
- Bookmark it. Your settings save in your browser, so come back anytime — especially when a craving hits — to remind yourself how far you've come.
Frequently Asked Questions
How accurate is the "money saved" figure?
It's a direct calculation: (cigarettes per day × days quit) × (pack price ÷ cigarettes per pack). The accuracy depends entirely on the price and consumption you enter. If your habit was variable (more on weekends, less when stressed), use your weekly average ÷ 7.
Where does the health timeline come from?
The milestones (20 minutes, 8 hours, 1 year, 10 years, etc.) are the long-standing benchmarks published by major health authorities including the U.S. Surgeon General's Report, the American Cancer Society and the NHS. Individual recovery varies, but these are the population-level averages quoted in standard smoking-cessation guidance.
What does "11 minutes of life per cigarette" mean?
It's a widely-cited estimate from a 2000 BMJ study that compared lifelong smokers' life expectancy to non-smokers'. Divided by their lifetime cigarette count, each cigarette costs roughly 11 minutes. Every cigarette you avoid is, statistically, 11 minutes added back.
What if I had a relapse — should I reset?
Whether to reset is up to you. A common approach: if it was a single cigarette and you immediately got back on track, keep your date. If you smoked for days or weeks, reset to the day you stopped again. Either way, your previous savings and milestones still happened — they're not undone by a setback.
Does this work for vaping, snus or other forms of nicotine?
The money and time calculations work — just enter equivalent "units per day" and your pack/cartridge price. The health timeline, however, is based specifically on smoking-related cardiopulmonary recovery. Vaping and other nicotine-replacement products have different (generally less severe but not zero) physiological effects.
Is my data saved anywhere?
Only in your own browser's local storage. There is no account, no sign-in, and nothing is sent to a server. Clear your browser data and the calculator resets.
Is this medical advice?
No. This is a motivational tracker, not a clinical tool. If you're using nicotine-replacement therapy, medication, or struggling with withdrawal, talk to your doctor or call a national quit-line — they significantly improve your chances of staying smoke-free.