Why can the curve rise after the last drink?
Absorption continues after a drink is finished. This model shows absorption and elimination together. Its peak and zero point are estimates, not measurements or confirmation of sobriety.
How does the BAC calculator work?
The calculator converts each serving’s volume and strength into an amount of pure alcohol, then models absorption and elimination minute by minute. Weight, sex, age, height and food are included. It uses the Cheers model with standard hydration and one shared absorption rate for all servings online.
Why is this only an estimate?
This is a mathematical model, not a breathalyzer measurement. Medicines, health, food and individual metabolism can change the actual result. Even 0.00 does not confirm sobriety. The estimate refers to the moment you press the button; entries and results are neither stored nor sent.
Sources: NIAAA · Alcohol Drink Size Calculator · How does the BAC calculator work? — Cheers
