Health & Fitness
Smoking Risk Calculator
Estimate pack-years, lifetime cost, and life-expectancy impact.
Cigarettes Per Day
Average number smoked per day
Years Smoked
yrs
Total duration of smoking history
Cigarettes Per Pack
Local pack size, used for the cost estimate below
Cost Per Pack
$
Local retail price for one pack
Pack-Years
0.0
Pack-Years
0.0
—
Total Cigarettes Smoked
0
Total Money Spent
$0
Annual Cost
$0
Estimated Life Lost
0 days
📊 Full Breakdown
| Metric | Value |
|---|
How the formula works
Pack-Years = (Cigarettes Per Day ÷ 20) × Years Smoked
- Pack-Years is the standard clinical measure of smoking exposure — a pack-year history of 20+ is commonly used as an eligibility threshold in lung cancer screening guidelines (e.g., USPSTF)
- Total Cigarettes Smoked = Cigarettes Per Day × 365 × Years Smoked
- Total Money Spent = (Cigarettes Per Day ÷ Cigarettes Per Pack) × Cost Per Pack × 365 × Years Smoked
- Estimated Life Lost uses a widely cited population-level estimate (~11 minutes per cigarette); individual impact varies and this is not a personal prediction
- This tool is for general education only, not medical advice. If you're looking to quit, your national quitline or healthcare provider is a good place to start