*Please note — The calculator above is a way to estimate your blood alcohol level, but your actual BAC will vary depending on additional factors including: hydration levels, recent food ingestion, fluid intake, kidney function, and others. The best way to determine BAC is via blood tests. The next best way is to use a breathalyzer device.
Below is a chart to give you an idea of the effects that alcohol will have on physical response to varying levels of alcohol ingestion.
BAC Chart Levels
Normal behavior. Minimum level of impairment.
Mild euphoria, impairment. Slightly increased confidence. Do not drive.
Buzzed, euphoric, increased impairment. Do not drive.
Drunkenness. Emotional responses. Slurred speech. Possible nausea and "spinning" effect. Do not drive.
Confused. Nausea. Possible blackout. Do not drive.
Possibly unconsciousness. Risk of death. Go to the emergency room.
Serious possibility of fatality. Unconsciousness. Coma.