BAC Calculator

User Information

Alcohol Intake

A standard drink in the US contains about 14 grams of pure alcohol.
Beer (Std.) is ~12oz at 5% ABV. Wine (Std.) is ~5oz at 12% ABV. Spirit (Std.) is ~1.5oz at 40% ABV.


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Disclaimer: This tool provides an estimation based on general pharmacokinetic models. Individual BAC can vary significantly due to factors like metabolism, food intake, medications, and health conditions. This app is for informational purposes only and should NOT be used to determine fitness to drive or make any safety-critical decisions. Always consult a healthcare professional for medical advice. Do not rely on this app to make decisions about alcohol consumption and safety.