Choose your vital stats to guess your Blood Alcohol Content!

Your Gender

Weight (lbs)

No. of Drinks

Time (hours)

*1 Drink = approximately one 12oz. beer, 1.5oz. shot, or 5oz. of wine



This BAC estimator can only approximate the amount of alcohol in your system and should only be used as a guideline. It uses calculation procedures provided to the National Highway Traffic Safety Administration courtesy of Herbert Moskowitz, Ph.D., which is a refinement of a previous formula by Swedish scientist Eric P. Widmark. The calculations produce an estimate based on average values, but may be greater or lesser depending on factors of which we do not have knowledge. This BAC estimator was not developed with the assistance of medical professionals and does not offer medical advice. By continuing, you acknowledge that you will not rely on the findings within this BAC estimator to determine if you are able to drive, for safety, or to comply with the law.