Blood Alcohol Content (BAC) Calculator
Estimate BAC from drinks consumed, body weight and elapsed time
π‘οΈ No automated diagnosis or risk percentage
This tool does not invent an unvalidated risk score or diagnosis. Use it to organize context for a more accurate conversation with a qualified clinician.
Drink counts cannot safely determine your current blood alcohol level or when driving is safe. Never use this page to decide whether to drive.
π Appointment preparation note
Completed items will be summarized here.
π©Ί Next step
Contact a health professional if symptoms persist or worsen, or readings remain unusual for you. Do not start or stop medicine based on an online result.
π¨ Get urgent help
For chest pain, severe trouble breathing, fainting, sudden one-sided weakness or speech trouble, severe allergic reaction, risk of self-harm, or severe bleeding or pain in pregnancy, stop and use your local emergency service now.