Blood Alcohol Calculator

Published: 4/30/2021 Last updated: 4/30/2021

Blood Alcohol Calculator Definition

The Blood Alcohol Calculator can determine your blood alcohol level based on the quantity of alcohol consumed, alcohol content, your weight, and the duration of time you have been drinking. For practical application, it includes the Blood Alcohol Level Analysis which determines whether your blood alcohol level is in legal limits to drive or if you would be charged with either a DUI or DWI in most if not all states. However, please keep in mind, there is a zero tolerance law for anyone under the age of 21 and certain states have stricter laws for drinking and driving in which the accepted blood alcohol content is 0.01% to 0.05%.

At the top of the Blood Alcohol Calculator there is a box in which you should write the Quantity of Alcohol Consumed in fluid ounces. If you are drinking a mixed drink, only include the actual amount of alcohol rather than mixers. A single shot is about 1.5 fluid ounces and a double shot is 3 fluid ounces, so if you are drinking a screw driver which has a shot of vodka then it would be 1.5 fluid ounces. In the second box, please include the percentage of alcohol content. This should be written directly on the bottle. Vodka is typically 30-40%, tequila is usually 40%, wine is 15-20%, and beers and ciders are 4-8%. The actual amount changes from company to company so to ensure accurate results, please check the label on your drink.

In the third box, include your weight in pounds. This is necessary as it affects the way that alcohol enters your blood stream. In the fourth box, you should enter how many hours you have been drinking. If you drank, 10 fluid ounces of Baileys in 1 hour, then your BAC would be much higher than if you drank the same amount in the course of 3 hours. Once you have finished, click calculate. The Blood Alcohol Calculator will first show you your Blood Alcohol Level Percentage. If this number is below the legal level of 0.08% it will give you the message “You are not legally intoxicated.” If it is at this level or above the message will read “In MOST or probably ALL states you are considered intoxicated and arrested for a DUI or DWI.” If you wish to start over this calculation, then click the Clear Values button on the Blood Alcohol Calculator.