Smoke-Free Days Counter
Pick the day of your last cigarette and this counts the days you have held since. Under three days it counts hours too, because that is how the first three days are actually counted. Your date rides in the link, so the link is your counter — bookmark it or send it to someone.
0 days and 3 hours since your last cigarette.
0 days smoke-free.
The day of your last cigarette. If you slipped, use the most recent one — the count is the distance from now, never a score.
Your next milestone
Your oxygen levels are recovering, and the harmful carbon monoxide level in your blood will have reduced by half.
Source: NHS
The whole ladder
Your heart rate and blood pressure drop.
Source: WHO
Your oxygen levels are recovering, and the harmful carbon monoxide level in your blood will have reduced by half.
Source: NHS
The carbon monoxide level in your blood drops to normal.
Source: WHO
Your risk of a heart attack declines within 24 hours.
Source: NCI
Your carbon monoxide levels have dropped to that of a non-smoker. Your lungs are clearing out mucus and your senses of taste and smell are improving.
Source: NHS
Your bronchial tubes have started to relax, so breathing feels easier, and your energy will be increasing.
Source: NHS
The start of the 2-to-12-week window in which circulation improves and lung function increases.
Source: WHO
The large number of nicotine receptors in your brain will return to normal levels after about a month of being quit.
Source: NCI
The far end of that window: blood is pumping through to your heart and muscles much better because your circulation will have improved.
Source: NHS
Any coughs, wheezing or breathing problems will be improving as your lung function increases by up to 10%.
Source: NHS
Your risk of coronary heart disease is about half that of a smoker's.
Source: WHO
Your stroke risk is reduced to that of a nonsmoker 5 to 15 years after quitting.
Source: WHO
Your risk of lung cancer falls to about half that of a smoker.
Source: WHO
The risk of coronary heart disease is that of a nonsmoker's.
Source: WHO
Every rung is quoted from a published timeline: the World Health Organization, NHS Better Health and the National Cancer Institute. The WHO and the NHS give different times for carbon monoxide, so both are on the ladder rather than averaged into a figure neither of them publishes. The quit smoking timeline sets all of it out in full.
Your counter link
This link carries your date. Bookmark it, add it to your home screen, or send it to someone — it opens already counting.
Link copied to your clipboard.
iPhone & iPad
- Tap Share in Safari
- Tap Add to Home Screen
- Tap Add
Android
- Tap the three-dot menu in Chrome
- Tap Add to Home screen
- Tap Add
How the count and the ladder work
The count is the elapsed time between your quit moment and now. Under three days it is reported in hours, because hour six of day one is a different problem from day forty and rounding it to "0 days" is the least useful thing a counter could do at the moment it is watched most closely. After that it becomes whole days, and it turns over at the same clock time you set rather than at midnight.
Your date lives in the link rather than in an account. The address bar is the storage: the counter reads the date out of the URL, which is why bookmarking or pasting the link carries your count to any device, and why there is nothing of yours on our side to lose or leak.
The ladder is a fixed list of published milestones, and each rung carries the body it came from rather than a house version of it. Twenty minutes for heart rate and blood pressure and 12 hours for carbon monoxide returning to normal are the World Health Organization's. Eight hours for carbon monoxide halved, 48 hours for reaching a non-smoker's level along with taste and smell recovering, and 72 hours for the bronchial tubes relaxing are the NHS's. Twenty-four hours for heart-attack risk beginning to decline is the National Cancer Institute's. Where the sources differ — the WHO and the NHS give different carbon monoxide timings — both rungs are on the ladder rather than averaged into a figure no health body publishes. PHP owns the list and hands the same array to the script, so the rungs the server draws and the rungs the page redraws cannot drift apart. These are population findings and not a prediction about you.
Where these numbers come from
- 1. Tobacco: Health benefits of smoking cessation — World Health Organization
- 2. Quit smoking — NHS Better Health
- 3. Benefits of Quitting — National Cancer Institute, Smokefree.gov
Nothing on this site is medically reviewed. Every figure above was read out of the code that runs on this page, and where a number is our own judgement rather than a published one, the note says so and cites nothing. Method last checked 21 August 2026.
What a counter makes visible
A counter turns something invisible into something you can point at. Not smoking leaves no evidence — no photograph, no receipt, nothing to show for the afternoon you spent wanting one. A number that goes up every midnight is the evidence, and it is the only kind this habit produces.
The first three days are shown in hours on purpose. Day four to day forty are a matter of holding on; hour six of day one is a different problem, and rounding it down to "0 days" is the least useful thing a counter could do at exactly the moment it is being watched most closely.
Your date lives in the link, not in an account. That is a deliberate design: the address bar is the storage, so the counter survives on any device you paste it into, and there is nothing of yours on our side to lose or leak.
Next: what happens at each milestone, what those days have saved you, and where the nicotine went in the first 72 hours.
Frequently Asked Questions
How do I count my smoke-free days?
Can I bookmark or share my counter?
What if I slipped and smoked one?
Which milestones does it show?
What happens if I clear my browser data?
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