What smoking costs
The money side of quitting is easy to measure. The calculator turns your old habit into a daily cost and adds it up since your quit date.
- Daily cost = cigarettes per day ÷ cigarettes per pack × price per pack
- Money saved = daily cost × days since quitting
- Cigarettes not smoked = cigarettes per day × days since quitting
Worked example
You smoked 15 cigarettes a day at $9 a pack of 20 and quit 30 days ago.
- Daily cost: 15 ÷ 20 × $9 = $6.75.
- Money saved so far: 6.75 × 30 = $202.50.
- Cigarettes not smoked: 450.
- Yearly savings: $2,464.
- Invested at 5% a year, ten years of savings would grow to about $30,989.
Life expectancy regained
A 2024 study from University College London, based on the British Doctors Study and the Million Women Study, estimated that each cigarette shortens life by about 20 minutes on average. The calculator uses that figure: 450 cigarettes avoided correspond to about 6.3 days of life expectancy. It is a population average, not a personal prediction, but it shows how quickly the benefit adds up.
What happens after you quit
| Time since quitting | Change |
|---|---|
| 20 minutes | Heart rate and blood pressure drop |
| 12 to 24 hours | Carbon monoxide in the blood returns to normal |
| 2 weeks to 3 months | Circulation and lung function improve |
| 1 to 9 months | Coughing and shortness of breath decrease |
| 1 year | Excess risk of coronary heart disease is about half that of a smoker |
| 5 to 15 years | Stroke risk approaches that of a nonsmoker |
| 10 years | Risk of dying from lung cancer is about half that of a smoker |
Quitting at any age helps. People who quit before 40 avoid about 90% of the excess risk of death from continued smoking.
Getting help
Most people need several attempts, and support makes success far more likely:
- Call 1-800-QUIT-NOW (1-800-784-8669) for free coaching in every state, or text QUIT to 47848.
- Nicotine replacement (patches, gum, lozenges) and prescription medicines such as varenicline roughly double the chance of quitting.
- Plan for triggers such as coffee, alcohol, stress and driving, and keep your hands and mouth busy.
Put the money you save toward something visible, such as a trip or a savings account. Watching the total grow is a strong reason to keep going.
This calculator is for general information and education. It is not medical advice and does not replace the judgment of a doctor, nurse or pharmacist who knows the full clinical picture.