|All States define legal intoxication for purposes of driving as having a BAC of 0.08 or greater, in most cases. But alcohol may affect driving skills at BACs even lower.
Use this calculator to instantly compute your estimated blood/breath alcohol concentration.
Instructions: Please select weight, drinks consumed, time period and gender and click the "compute your BAC" button:
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).
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.