What is considered one standard drink in the US?

Alcohol Burn & BAC Calculator - Blood Alcohol & Sobriety Countdown

Estimate your Blood Alcohol Concentration (BAC) and hours required until 0.00% complete sobriety using the clinical Widmark equation.

⚙️ Configuration & Inputs

Biological Sex

Body Weight

lbs

Standard Drinks Consumed1 drink = 12oz beer (5%), 5oz wine (12%), 1.5oz shot (40%)

Hours Since First Drink

hours

📊 Results & Analysis

Estimated Current BAC

0.054%

Below 0.08% Legal Driving Limit

Peak BAC (Before Metabolism)	0.084%
Estimated Current BAC	0.054%
Alcohol Elimination Rate	~0.015% per hour
Hours Until 0.00% Sober	~3.6 Hours

The Widmark Formula for Blood Alcohol Metabolism

Alcohol is eliminated from the human bloodstream through the liver at an average rate of 0.015% BAC per hour. No amount of coffee, cold showers, or exercise can speed up liver enzyme metabolism:

BAC = [Alcohol in grams ÷ (Body Weight in grams × r)] - (β × Hours)

Disclaimer: This calculator provides theoretical mathematical estimates only. Individual metabolism varies based on hydration, food intake, and liver health. Never drink and drive!

Frequently Asked Questions

A standard drink contains 14 grams (0.6 fluid ounces) of pure ethanol: 12 oz of 5% beer, 5 oz of 12% wine, or 1.5 oz of 80-proof (40%) distilled spirits.