free bac calculator

DON'T DRINK AND DRIVE! See how little alcohol is required to change the alcohol content of your blood stream.

Enter your gender:
Enter your weight:
Select your beverage:
Enter the number of those consumed:
Enter the amount of time since drinking began:
Enter your gender:
Enter your weight:
Select your beverage:
Enter the number of those consumed:
Enter the amount of time since drinking began:

The BAC Calculator

This BAC calculator can only estimate your blood alcohol levels. Metabolism, body fat percentage and medication are other factors that can affect the rate of absorbtion by the body, and these are not considered in this calculation.

Blood alcohol content (BAC) or blood alcohol level is the concentration of alcohol in the bloodstream. It is usually measured as mass per volume. For example, a BAC of 0.04% means 0.4% (permille) or 0.04 grams of alcohol per 100 grams of individual's blood. Use the HealthStatus BAC Calculator for informational purposes only, and not to drink and drive or drink and work.

Every state in the U.S. has a legal Blood Alchohol (BAC) limit of 0.08% per se. Most states also have lower legal BAC limits for young and inexperienced drivers, professional drivers and commercial drivers. Sentences for drunk driving include imprisonment, large fines, lengthy drivers license suspension and/or revocation, house arrest, community service, DUI schools, alcohol treatment programs, vehicle forfeiture and ignition interlock restrictions.

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 the sex (male/female) of the drinker, 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. The best that can be done is a rough estimation of the BAC level based on known inputs.

Calculator Source: Computing a BAC Estimate. Driving under the Influence October 1992. U.S. Department of Transportation

Drinking alcohol increases your risk for liver problems. If you think you or someone you know might have a problem with alcohol, take the alcohol abuse quiz.