This pack years reference table shows the pack years for a range of cigarettes per day values, assuming a years smoked of 10. Every figure is computed with the same engine that powers our Pack Years Calculator, so the numbers are exact.
| Cigarettes per day | Pack years |
|---|---|
| 5 | 2.50 |
| 10 | 5.00 |
| 15 | 7.50 |
| 20 | 10.00 |
| 30 | 15.00 |
| 40 | 20.00 |
| 60 | 30.00 |
| 100 | 50.00 |
| 140 | 70.00 |
| 200 | 100.00 |
How to use this table
Find the row closest to your cigarettes per day and read across to the pack years. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Pack Years Calculator for a precise answer.
Need a value that is not in the table? — the Pack Years Calculator does it instantly, for free, with the formula and a worked example built in.
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