PackHistory
Cigarette smoking history

Your smoking history, counted in two minutes.

Answer a few simple questions. Your care team gets a clear summary to help offer lung screening and support to quit.

English or Spanish · Your answers stay on this device
For clinicians

Why pack-year history matters

Pack-years decide lung screening eligibility, but they’re often missing from the chart. This tool turns the patient’s own answers into a note you can paste in seconds.

Simple for patients. Ready for the chart.

Step 1

You answer

One short question at a time. Best guesses are fine.

Step 2

We do the math

Your answers become pack-years, right on this device.

Step 3

Hand it back

Your care team sees a summary and a note for your chart.

What’s a pack-year?

One pack-year means smoking one pack (20 cigarettes) a day for one year. How much and how long both count.

Packs a day × years smoked = pack-years

1 pack × 20 years20
2 packs × 10 years20
½ pack × 40 years20
Width is years, height is packs a day. Same area, same 20 pack-years.

Thinking about lung cancer screening?

Should I Screen, from the University of Michigan, explains the benefits, harms and costs.

Visit shouldiscreen.com

Lung Screening and Smoking Cessation Support

Lung Screening Ask your care team if lung cancer screening is right for you.
Smoking Cessation Free coaching by phone, in English and Spanish Call 1-800-QUIT-NOW (1-800-784-8669) Visit smokefree.gov

Stopping smoking is one of the most important things you can do for your health. If you’d like help, ask your care team.