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Blood Alcohol Calculator

Inputs

Select your gender for accurate water distribution calculation

Your current body weight in the selected unit

Standard drinks consumed (1 drink = 14g pure alcohol)

Standard drink = 14g. Adjust for stronger/weaker drinks

How long ago did you start drinking?

Food slows alcohol absorption

Results

Blood Alcohol Concentration
Your estimated BAC level
BAC in mg/dL
Impairment Level
Safe to Drive
Time to Sober (0.0% BAC)
Formula
BAC = (Alcohol consumed in grams / (Body weight in grams × Distribution ratio)) × 100 - (Metabolism rate × Hours elapsed)
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