Blood Alcohol Content Calculator

1. Number of Drinks:
1 2 3 4 5

2. What Are You Drinking?
Reduced alc. Beer 12oz Light Beer 12oz Imported Beer 12oz Beer 12oz Malt Liquor 12oz Table Wine 5oz Champagne 5oz Fortified/dessert Wine 5oz Bloody Mary Gin and Tonic Highball Irish Coffee On the Rocks Pina Colada Screw Driver Tom Collins Whiskey Sour Margarita Airline Miniature Gimlet Old Fashioned Mint Julep Black Russian Dry Martini Manhattan Rob Roy Double On the Rocks Frozen Daiquiri

3. What's Your Weight?:
100 120 140 160 180 200 220 240

4. How Long Have You Been Drinking?
0 hours 1 hour 2 hours 3 hours 4 hours 5 hours

5. Your Blood Alcohol Content is:

 

The basic formula for estimating a person's blood-alcohol concentration comes from The National Highway Traffic Safety Administration. Each drink in this calculation assumes a volume of of .54 ounces of alcohol (one shot of distilled spirits, a glass of wine, or 12 ounces of beer).

Important Note: There is no blood alcohol calculator that is 100% accurate because of the number of factors that come into play regarding the consumption and reduction (burnoff) rates of different people. Factors include differing metabolism rates, various health issues and the combination of medications that might be taken, drinking frequency, amount of food in the stomach and small intestine and when it was eaten, elapsed time, and others.

Disclaimer: This is in no way purported to be a guideline for how much you can drink and still drive or avoid being arrested! The best policy is don't drink & drive.