Blood Alcohol Content Calculator

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Fluid Ounces Consumed


Bottle of Beer ~ 12 oz.
Glass of Wine ~ 4 oz.
Shot Glass ~ 1.5 oz.
Percent Alcohol


Domestic Beer ~ 4-4.5%
Wine ~ 15-20%
Shot ~ 30-50%
Hours Consuming Drink


Enter 1/2 hour as 0.5, etc.

Your Weight (in pounds)


2.2 pounds = 1 kilogram

BAC Percentage

BAC Analysis


Individuals with the same blood alcohol content can exhibit different degrees of inebriation (drunkenness).

DUI Laws vary by state. This calculator uses 0.08% blood alcohol content as the legal limit.

Never drink and drive. Reaction times slow even before you reach the legal limit.

This calculator is for educational purposes only. Use at your own risk.