Male
Male Calculations are based on a 25-year-old in good health.
Female
Age is not a factor when determining the calculation for females.
Other Considerations
- How fast a person's BAC rises depends on a number of factors including: Body size and fat, gender, physical health, fitness, age, time between drinks, food and non-alcoholic drinks, medication, tolerance and the environment.
- This chart assumes a highly conservative elimination rate of alcohol from the body of 0.015mg/100ml/hr. Rates may vary between 0.01 and 0.025mg per 100ml/hr.
- Chart assumes at least one drink per hour. Under most social drinking conditions, drinks are consumed every 20 minutes at a rate of three per hour in a one to two hour period. Patterns will change with extended periods of drinking.
- Chart is based on the maximum BAC attainable per drink which may not occur during periods of extensive drinking or during the consumption of food with alcohol.
- Blood alcohol percentages on the charts have been truncated to two decimals.
BAC charts are courtesy of the Academy of Forensic Toxicology (TAFT), James Wigmore, President (Senior Scientist, Retired, Toxicology Section, Center of Forensic Sciences).
