1 Pack per Day for 20 Years
Packs of cigarettes smoked per day: 1 packs; Years of smoking: 20 years
Pack-Years: 20 pack-years
Pack Year Calculator
Health0.0(0)
Calculates pack-years, a measure of the amount a person has smoked over time. It is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked.
More tools:Health Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Packs of cigarettes smoked per day and Years of smoking in the units shown.
Step 2
Read Pack-Years in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
2 Packs per Day for 10 Years
Packs of cigarettes smoked per day: 2 packs; Years of smoking: 10 years
Pack-Years: 20 pack-years
0.5 Packs per Day for 30 Years
Packs of cigarettes smoked per day: 0.5 packs; Years of smoking: 30 years
Pack-Years: 15 pack-years
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Important
Use the result as an estimate and confirm any medical decisions with a qualified professional.