Addiction Medicine calculators
17 calculators BAC Calculator Estimate blood alcohol content with the Widmark formula. Add beer, wine and liquor by ABV, set weight, sex and time, then see peak BAC and hours to sober.
Open Pack-Year Calculator Calculate smoking pack-years from cigarettes per day and years smoked. Add a second period for changing habits, check USPSTF lung-screening eligibility, and see cost.
Open Standard Drink Calculator Convert any drink to standard drinks from volume and ABV or proof. Pick US, UK, AU, Canada or EU standards, count multiple drinks, see pure alcohol, calories and cost.
Open Addiction Calculator (AUDIT Alcohol Screener) Free AUDIT alcohol use disorder screener. Answer 10 WHO-validated questions to get your risk score (0-40), risk zone, and personalised next steps.
Open Alcohol Unit Calculator Calculate alcohol units and calories from any drink by ABV and volume, compare against weekly guidelines, and see a breakdown by drink type for 16 countries.
Open AUDIT Score Calculator - WHO Alcohol Use Test Take the official 10-question WHO AUDIT screening test. Get your total score, risk zone, domain breakdown, and an AUDIT-C subscore instantly in your browser.
Open BAC Calculator (Blood Alcohol Content) Estimate your blood alcohol content (BAC) using the Widmark formula. Enter your drinks, weight, sex, and time drinking to see BAC, sobriety time, and effects.
Open Caffeine Calculator Calculate your safe daily caffeine limit by body weight, see how much caffeine remains at bedtime, and find out when to stop drinking coffee. Metric and imperial.
Open CAGE Questionnaire Calculator Take the validated 4-question CAGE alcohol screening test online. Get an instant score, risk category, sensitivity data, and guidance on next steps.
Open Cigarette Calculator Calculate how much you spend on cigarettes per day, week, month and year, and see exactly how much you save by quitting, with an investment growth projection.
Open CIWA-Ar Calculator Score the 10-item CIWA-Ar scale for alcohol withdrawal in under 2 minutes. Get total score, severity level, and clinical guidance with each symptom explained.
Open DUDIT Calculator Take the validated 11-question DUDIT screening test online. Get your score, gender-specific interpretation, and guidance on what your result means.
Open Fagerstrom Test for Nicotine Dependence Calculator Take the validated Fagerstrom Test for Nicotine Dependence and get your FTND score (0-10), dependence level, and personalised cessation guidance.
Open Finnegan Score Calculator Score all 21 Modified Finnegan NAS signs across 3 domains. Get an instant total with clinical treatment thresholds, interpretation, and step-by-step calculation.
Open HSI Calculator - Heaviness of Smoking Index Calculate your Heaviness of Smoking Index (HSI) score to measure nicotine dependence. Get your low, medium, or high dependence rating with a step-by-step breakdown.
Open Smoking Recovery Calculator Calculate how much life you regain, money you save, and which health milestones you hit after quitting smoking. Personalised timeline from 20 minutes to 15 years.
Open Sobriety Calculator Count your days, weeks, months and years sober. See money saved, drinks avoided, and the health benefits you have unlocked along your recovery journey.
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