Addiction Medicine Calculators

Medicine & Health Calculators

Free online calculators for alcohol units, caffeine intake, smoking, sobriety tracking and health screening questionnaires.

Use these educational health calculators to organize information, estimate quantities and understand common screening questionnaires. Results depend on the information entered and must not be used as a substitute for medical advice.

Medical safety notice: These tools do not diagnose addiction or determine whether a person is safe to drive. CIWA-Ar and Finnegan scores must be assessed by trained healthcare professionals. If someone has severe alcohol withdrawal symptoms, seizures, hallucinations or confusion, seek emergency medical care.

Find a Calculator

Search by calculator name Category All calculators Alcohol and sobriety Screening questionnaires Smoking and nicotine Other health calculators

Caffeine Calculator

Formula / Method

Enter the units shown beside each field.

About These Health Calculators

Alcohol unit and standard drink calculators estimate ethanol consumption. Screening questionnaires such as AUDIT-C, AUDIT, CAGE, DUDIT and Fagerström can help structure a conversation with a healthcare professional. Smoking calculators can estimate cumulative cigarette exposure and track time since quitting.

Screening scores are not diagnoses. Cutoffs vary by questionnaire, population and clinical setting. For medication decisions, withdrawal treatment, pregnancy or newborn assessment, always consult a qualified clinician.

Frequently Asked Questions

Are these calculators free?

Yes. The calculations run in your browser and do not require an account.

Can these calculators diagnose addiction?

No. Questionnaire scores are screening aids, not diagnoses. A healthcare professional can assess symptoms and circumstances.

Can I use the BAC calculator to decide whether to drive?

No. Estimated BAC can be inaccurate and cannot establish that driving is safe or legal. Do not drive after drinking.

Does a sobriety calculator predict recovery?

No. It counts elapsed time from a selected date. It does not measure health, treatment progress or future outcomes.