If you would like to use this calculator offline, the formula is provided below:
C = Cost of a pack
A = Amount of cigarettes smoked daily
Y = Years smoked
Total cigarettes smoked = (A x 365) x Y
Cost per week = ((C/20) x A) x 7
Cost per month = ((C/20) x A) x 30
Cost per year = ((C/20) x A) x 365
Hours lost from life in a year = ((5.5 x A) x 365)/60
Days lost from life in a year = Hours lost from life in a year/24
Total Days Lost from life = Days lost from life in a year x Y
Projected cigarettes smoked in the next year = A x 365
Projected cigarettes smoked in the next 5 years (A x 365) x 5
Projected cigarettes smoked in the next 10 years (A x 365) x 10