Home | Smoking Pack Years, Calculator Cigarettes per day yrs Cigarettes per day yrs Cigarettes per day yrs Cigars or spliffs per day yrs Cigarillos per day yrs Pipe (no. of bowls) per day yrs Tobacco (ozs) per week yrs Tobacco (grams) per week yrs Water pipe (20 min session) per week yrs Pack years: Calculator This calculator helps to... View Article.