Calculate Your Blood Alcohol Content (BAC)

Check your blood alcohol content (BAC) level by entering the requested information in the calculator.

  • Ounces of beverage consumed: 1 beer = 12 oz.
    Glass of wine = 5 oz. / 1 shot = 1.5 oz.
  • Your Weight (lbs)Percentage of alcohol in beverage:
    1 beer = 4-7% / Glass of wine = 11-13% / 1 shot = 40%
  • Hours spent drinking

Oz. of drink consumed: % of alcohol in drink:
Your Weight (lbs): Hours spent drinking:

Your results:
BAC Percentage:
BAC Analysis:
calculate BAC Reset


Health Tool Disclaimer
These health tools are meant for educational purposes only. This information is provided by the Cleveland Clinic and is not intended to replace the medical advice of your doctor or health care provider. Please consult your health care provider for advice about a specific medical condition. We will do our best to provide you with information that will help you make your own health care decisions. For additional health information, please e-mail us or call The Cleveland Clinic Health Information Center at (216) 444-3771 or toll-free (800) 223-2273 extension 43771.