Calculator · smoking history
Pack-years calculator
Pack-years summarize smoking history as packs-per-day × years smoked. Calculate yours in seconds for awareness — then focus on the next craving, not just the résumé of the past.
Educational only — not medical advice or a clinical diagnosis. If you use NRT, medication, or a clinician’s plan, keep following that.
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Pack-years ≈ (packs per day) × (years smoked). Used in research and screening conversations — not a diagnosis.
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PACK-YRSPack-years 7.50 Pack-years ≈ (packs per day) × (years smoked). Used in research and screening conversations — not a diagnosis. Cigarettes per day (average): 15 Years smoked: 10 #PackYears #Hold90 Hold90 · https://hold90.app
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Numbers help — urges still need a next step
When the next craving hits, Hold90 gives you 90 seconds of something to do besides smoke.
Open Hold90Track this live in Hold90 — slips don’t wipe your progress.
What pack-years mean
One pack-year usually means smoking one pack (often 20 cigarettes) per day for one year — or an equivalent total. Clinicians sometimes use the number in screening conversations.
What it doesn’t decide for you
Pack-years are not a sentence and not a diagnosis. Quitting still improves many risks over time. If you have personal health questions, ask a qualified clinician.
History is data; the urge is now
After you have the number, the useful skill is surviving the next spike. Hold90 is built for that moment — 90 seconds, private, on your device.
FAQ
- How do you calculate pack-years?
- Packs per day × years smoked. If you smoke 10 cigarettes a day (half a pack) for 20 years, that’s about 10 pack-years.
- Is this medical advice?
- No. It’s an educational calculator. Screening and care decisions belong with a clinician.
Past packs don’t have to write today
Use Hold90 when the next craving hits — 90 seconds, no account, progress that doesn’t shame you for a slip.
Open Hold90Track this live in Hold90 — slips don’t wipe your progress.
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Guides
- How to quit smoking without waiting for a perfect day
A practical way to quit smoking: ride each craving for about 90 seconds, keep your quit clock after a slip, and track health and savings on your phone — no account.
- Benefits of quitting smoking
Benefits of quitting smoking over minutes, days, weeks, and years — plus how local milestones keep quiet progress visible during cravings.
- How much money do you save when you quit smoking?
See how much money you save quitting smoking from pack price and cigarettes per day. Track savings and a wishlist locally in Hold90 — no account.