Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Medicine
Pack Years Calculator
Calculates cumulative smoking exposure in pack-years by multiplying daily cigarette packs by years smoked. Used by physicians to quantify lung cancer risk, COPD staging, and eligibility for lung cancer screening programs.
Fill in the required fields to see your result.
Medicine
BSA-Based Dosage Calculator
Compute a body-surface-area-based medication dose using the DuBois BSA formula multiplied by the per-m² dose. Standard approach for chemotherapy and a few other classes of drugs whose pharmacokinetics scale with BSA.
Fill in the required fields to see your result.
Key differences
| Pack Years Calculator | BSA-Based Dosage Calculator | |
|---|---|---|
| Category | Medicine | Medicine |
| Inputs required | 2 | 3 |
| Result | Pack Years (pack-years) | Total Dose (mg) |
| What it does | Calculates cumulative smoking exposure in pack-years by multiplying daily cigarette packs by years smoked. Used by physicians to quantify lung cancer risk, COPD staging, and eligibility for lung cancer screening programs. | Compute a body-surface-area-based medication dose using the DuBois BSA formula multiplied by the per-m² dose. Standard approach for chemotherapy and a few other classes of drugs whose pharmacokinetics scale with BSA. |