Calculator

This calculator helps to produce a numerical value of lifetime tobacco exposure called pack years. A pack year is defined as twenty cigarettes smoked everyday for one year. People who smoke often vary their smoking habits over the years which can make it difficult to create a pack score. This smoking pack year calculator simplifies the task.

Read more in the FAQs and see Instructions.

The smoking pack year calculator was highly commended in the Best use of Media and Technology in the GP Enterprise awards 2012. The Judges said “The simplicity and usefulness of this calculator, and the generosity of its creators, mean that we should take every opportunity to disseminate its availability”.