HSI Calculator — Heaviness of Smoking Index

Calculates an individual's estimated nicotine dependence level using a structured questionnaire based on the Heaviness of Smoking Index (HSI). Users answer questions detailing various aspects of their smoking habits, including frequency, intensity, and specific behaviors associated with tobacco use. The tool compiles these self-reported responses to generate a score that quantifies how heavily someone may be reliant on smoking. Individuals seeking to gauge their current level of nicotine addiction or needing an objective measure of their smoking habit would utilize this resource. Those considering quitting smoking or working with healthcare professionals can use the resulting HSI score as a preliminary baseline for assessing dependence severity.