Estimate your Blood Alcohol Content (BAC) based on consumption and time elapsed using the Widmark formula.
Consumpton Factors
BAC Estimation
Enter your consumption details to see an estimation of your blood alcohol level.
About this calculator
Overview
Blood Alcohol Content (BAC) is the percentage of alcohol present in your bloodstream. While it's commonly associated with determining legal impairment for driving, BAC levels depend on many factors including your biological gender, body weight, the strength of the drinks, and the time elapsed since you began drinking.
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Pro Tips
Always alternate drinks with water to stay hydrated and slow down your consumption rate.
A 'standard drink' is usually defined as 14 grams of pure alcohol—roughly a 12oz beer, 5oz of wine, or a 1.5oz shot.
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Fun Facts
"The legal driving limit in many jurisdictions is 0.08%, while some countries have moved to a stricter 0.05% limit."
"Alcohol is a depressant; it doesn't just affect your speech and coordination, but also slows down your reaction time."
"Your liver can only process approximately one standard drink per hour. Nothing—not coffee or cold showers—can speed up the rate at which your body eliminates alcohol."
