Smoking Pack Years

Estimate cumulative smoking exposure by multiplying daily packs by years smoked.

Informational only; seek medical advice for health assessments.

Examples

  • 1 pack/day for 10 years ⇒ 10 pack-years
  • 0.5 pack/day for 20 years ⇒ 10 pack-years

FAQ

What is a pack year?

One pack year equals smoking one pack per day for a year.

Can I use decimal packs?

Yes, enter partial pack values like 0.5.

Does quitting reset pack years?

No, it's a cumulative measure.

Is this used medically?

Yes, clinicians use pack years to assess risk.

Additional Information

No additional information available.