How Many Attempts Does It Take to Quit Smoking?

There is no single trustworthy number, and it is worth knowing why. Surveys of successful quitters have long suggested around six to nine attempts. A 2016 analysis published in BMJ Open, using longitudinal data rather than asking people to remember, concluded it may take 30 or more.

The honest answer is “often many”. And the reason that is good news rather than bad is straightforward: if the typical path to quitting involves multiple attempts, then the attempts that ended are not evidence that you cannot do this. They are the normal shape of the thing working.

Why the estimates disagree so wildly

The gap between six and thirty is not sloppiness. It is two different questions being answered.

The low numbers come from asking successful quitters. Survey people who have stopped and ask how many attempts it took. Two problems. First, you are only surveying the winners — everyone still smoking after 40 attempts is excluded by design. Second, recall is unreliable: people remember serious, planned attempts and forget the Tuesday they stopped until Thursday.

The higher number came from following people forward. The 2016 study modelled a large longitudinal cohort of smokers, counting attempts as they happened rather than as they were remembered. Counted that way, the average number of attempts before sustained success rose dramatically.

Definitions matter too. Some studies count only attempts lasting 24 hours or more with genuine intent to stop permanently. Others count any deliberate attempt. Whether the vape you abandoned in March counts is not a settled question.

The practical takeaway is not a number to aim at. It is this: whatever your count, it is almost certainly within the normal range, and it says very little about your odds this time.

How many attempts succeed?

CDC data show more than half of adult smokers make a quit attempt in a given year, while well under one in ten actually stops for that year. Most of those attempts are unaided.

That figure looks demoralising until you turn it around. Most attempts are made with no medication, no support and no plan for the specific hour when it usually breaks — and against those conditions, a low success rate is not a statement about smokers. It is a statement about method.

Why attempts end, and what each one tells you

Across the research and across most people’s own histories, quit attempts end for a small and repetitive list of reasons:

• The day-three peak. Withdrawal peaks around 72 hours, and an attempt with no plan for that specific day frequently ends on it.
• Alcohol. The single most consistent relapse trigger. Lowered restraint, plus a setting saturated with smoking cues.
• One specific unhandled trigger. The drive home, the coffee, the smoking colleague, the after-dinner gap.
• A stress event. A bad week arrives, and “not now” becomes “not ever”.
• The “just one” test, which almost never stays at one because the reward learning is intact even after months.
• Doing it alone, with nobody told, so there is no cost to quietly restarting.

Notice that every one of those is a specific, identifiable failure point rather than a general shortage of willpower. That is exactly why attempts accumulate value. After three attempts, you are not three failures deep — you have a list of the three conditions under which you personally relapse, which is information no first-time quitter has.

What actually raises the odds

The gap between unaided attempts and supported ones is one of the more decisive findings in this field.

• Behavioural support plus medication. The NHS reports you are far more likely to quit successfully using a stop-smoking service alongside stop-smoking medicine than by willpower alone. This combination is the single biggest upgrade available and the one most commonly skipped.
• Nicotine replacement therapy. Cochrane reviews find NRT increases the chance of successfully quitting by roughly 50–60% compared with placebo. Combination NRT — a patch for the background level plus a fast-acting form such as gum, lozenge or spray for breakthrough cravings — outperforms a single product.
• Prescription medication. Effective options exist and are worth discussing with a doctor or pharmacist, particularly if previous attempts collapsed during the withdrawal peak.
• Tapering with real numbers. Reducing your daily count on a defined schedule before the quit date lowers the height of the cliff, and it makes the trigger inventory above visible while you can still act on it.
• Self-monitoring. Simply counting is not a neutral act. Tracking a behaviour changes it, largely by breaking the autopilot — you cannot smoke unconsciously and record it at the same time.
• Telling people. Social commitment makes quiet abandonment expensive.

How to run attempt number N so it is different

1. Do a ten-minute post-mortem on the last one. Not to feel bad — to extract data. What day did it end? What hour? Where were you? Who were you with? Had you been drinking? What was the exact sentence your brain used? Write it down.
2. Fix that one specific thing. If it was alcohol, plan the first month’s social calendar. If it was day three, plan day three: nothing demanding, early night, support ready. If it was the drive home, change what happens in the car.
3. Add the tool you skipped. Almost everyone has one they have never actually tried — usually NRT at a proper dose, or a stop-smoking service. Use it this time.
4. Set a date about a week out and prepare during that week rather than quitting on impulse at midnight.
5. Adopt “never miss twice”. One cigarette is a data point. Two days is a relapse. The entire difference between them is what you do in the next hour, and treating a slip as a total collapse is what converts one cigarette back into twenty a day.
6. Count everything. Both before and during. It is the cheapest intervention with the best evidence behind it.

The reframe that matters

Nobody describes a driver who stalled six times before passing a driving test as having failed six times. They describe them as having learned to drive.

Quitting has the same structure and almost none of the same social framing, which is why smokers carry a sense of personal failure that the evidence does not support. Prior attempts do not predict failure. They are how most people who eventually stop got there.

The one thing worth changing about your relationship with the count is to stop treating it as a scoreboard and start treating it as a syllabus.

Puff Counter is built for exactly this stage — the attempt that comes after the ones that did not hold. It counts what you actually smoke or vape instead of what you think you do, then steps your daily limit down week by week from that real number, so the withdrawal peak arrives as a small step rather than a cliff, and a bad day shows up as one bad day in the data rather than the end of the attempt.

However many attempts are behind you, the only one with a zero per cent success rate is the one you do not start. Attempt N begins whenever you decide it does.