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Blood Alcohol Content Calculator

Number of drinks :  
What are you drinking :  
How much do you weigh :   Lbs.
How many hours since your first drink :  
Gender :  
Your Blood Alcohol Content (BAC) :   (Theoretical)


Your actual BAC is dependent on many complex factors, including your emotional and physical condition and health, and what you've recently ingested (including food, water, medications and other drugs). No blood/breath alcohol calculator is 100% accurate. The best that can be done is a rough estimation of your BAC level. You should not consider this to be a guideline for how much you can drink and still drive responsibly, or avoid being arrested! The best policy is don't drink and drive. Period. NOTE: The basic formula for estimating a person's blood/breath alcohol concentration comes from the National Highway Traffic Safety Administration.