BAC Calculator

Calculate your Blood Alcohol Content (BAC) and get safety information about alcohol impairment. This tool helps you make responsible decisions about drinking and driving.

Important: This calculator provides estimates only. BAC can vary significantly based on many factors. Never rely solely on calculations when making decisions about driving or safety. When in doubt, don't drive.

Personal Information

Enter your details for accurate BAC calculation

Weight Unit

Gender

Weight (kg)

Age (years)

Must be 18 or older

Food Consumed

Drinking Time Frame (hours)

Drinks Consumed

Add all alcoholic beverages you have consumed