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.

You have been smoke-free for
0 Days
10 Hours
0 Minutes
0 Seconds

0 days and 10 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

12 hours

The carbon monoxide level in your blood drops to normal.

Source: WHO

The whole ladder

20 minutes

Your heart rate and blood pressure drop.

Source: WHO

8 hours

Your oxygen levels are recovering, and the harmful carbon monoxide level in your blood will have reduced by half.

Source: NHS

12 hours

The carbon monoxide level in your blood drops to normal.

Source: WHO

24 hours

Your risk of a heart attack declines within 24 hours.

Source: NCI

48 hours

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

72 hours

Your bronchial tubes have started to relax, so breathing feels easier, and your energy will be increasing.

Source: NHS

2 weeks

The start of the 2-to-12-week window in which circulation improves and lung function increases.

Source: WHO

1 month

The large number of nicotine receptors in your brain will return to normal levels after about a month of being quit.

Source: NCI

12 weeks

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

9 months

Any coughs, wheezing or breathing problems will be improving as your lung function increases by up to 10%.

Source: NHS

1 year

Your risk of coronary heart disease is about half that of a smoker's.

Source: WHO

5 years

Your stroke risk is reduced to that of a nonsmoker 5 to 15 years after quitting.

Source: WHO

10 years

Your risk of lung cancer falls to about half that of a smoker.

Source: WHO

15 years

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.

iPhone & iPad

  1. Tap Share in Safari
  2. Tap Add to Home Screen
  3. Tap Add

Android

  1. Tap the three-dot menu in Chrome
  2. Tap Add to Home screen
  3. Tap Add

Why This Matters

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?
Enter the date of your last cigarette and the counter does the rest: it counts whole days from that date to today. Under three days it also shows hours, because the first 72 hours are the part people count in hours rather than days.
Can I bookmark or share my counter?
Yes. Your date rides in the web address as ?d=YYYY-MM-DD, so the link is your counter. Bookmark it, save it to your home screen, or send it to someone and it opens already counting from your date — no account, nothing stored on our side.
What if I slipped and smoked one?
Move the date to the most recent one. The count is the distance from now, not a score, and it has never measured anything about the person holding it. Most people who stop for good have stopped several times first.
Which milestones does it show?
The next mark on the published quit-smoking timelines: 20 minutes, 8 hours, 48 hours, 72 hours, 2 weeks, 12 weeks, 9 months, 1 year, 10 years and 15 years. Every one of them is taken from the WHO and NHS timelines, and what happens at each is set out on the quit smoking timeline page.
Is my quit date stored anywhere?
Only in your own browser, and in the link you choose to keep. There is no account and nothing is sent to a server. Clear your browser data and the counter forgets — which is why the link is worth bookmarking.

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