Pack Year Calculator

A standard pack is 20 cigarettes.
Optional, for a period smoked at a different rate.
Used only to check the USPSTF age condition of 50 to 80.
Pack years
30.00
Pack Year Calculator
Packs a day
1.000
Pack years, first period
30.00
Pack years, second period
0.00
Cigarettes smoked in total
219,150
Packs smoked in total
10,957.5
Reaches the 20 pack-year threshold
yes
Meets all three USPSTF conditions
age not given
Summary
30 pack years (1 packs a day for 30 years).
Worked out from National Cancer Institute, NCI Dictionary of Cancer Terms: pack year and 1 other source.
Pack-years are one input to a screening decision, not a diagnosis. Discuss lung-cancer screening with a clinician.

How this is worked out

4 steps
  1. 20 cigarettes a day / 20 per pack = 1 packs a day.
  2. 1 x 30 years = 30 pack years.
  3. Total 30 pack years.
  4. That reaches the 20 pack-year threshold in the USPSTF lung-cancer screening recommendation.

Results are general information, not financial, tax, legal, medical or engineering advice.