Smoking calculator
Enter the average number of cigarettes you smoke per day and the price of a pack of 20.
Your yearly spending on cigarettes
Illustrative annual tar amount
Illustrative equivalent of life expectancy lost
The calculation assumes 365 days and 20 cigarettes per pack. The 8 mg of tar per cigarette is an illustrative assumption, not a measurement of the amount absorbed by your body. The 20 minutes per cigarette is a population-level average; risk is not linear. The result is an illustration, not an individual life expectancy forecast. Selecting a currency does not convert exchange rates.
Sources: National Cancer Institute · University College London.