HSI Calculator - Heaviness of Smoking Index

Your details

Lighting up within 5 minutes of waking is the strongest single marker of high nicotine dependence.
The number of cigarettes smoked on a typical day when you are smoking.
Used only for the optional annual spending estimate. Leave at the default if you prefer not to enter a price.
USD
Most standard packs contain 20 cigarettes; king-size packs may hold 25.
cigs
HSI ScoreMedium dependence
3/ 6

Total Heaviness of Smoking Index score (0-6)

Time to first cigarette score2/ 3
Cigarettes per day score1/ 3
Estimated annual spend2,464USD
Daily spend6.75USD
3 / 6
Low<2Medium2-5High5+

Your HSI score is 3/6 - medium nicotine dependence.

  • A medium score indicates moderate physical reliance on nicotine, which is common among daily smokers.
  • Nicotine replacement therapy (patches, gum, or lozenges) often helps people in this range manage cravings.
  • Combining behavioral counseling with nicotine replacement roughly doubles cessation rates compared with willpower alone.
  • At your current smoking rate you spend approximately $2464 per year on cigarettes.

Next stepTalk to a pharmacist or doctor about an NRT plan before your quit date, and set the date within the next 30 days.

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