Estimate your blood alcohol concentration (BAC)
This easy-to-use interactive program will help you to estimate your blood alcohol concentration (BAC) through a simulated drinking session.
What is BAC?
Blood alcohol concentration (BAC) is a measure of the amount of alcohol in the
body in grams of alcohol per 100 millilitres of blood (g%).
BACs may vary widely
Any one person drinking the same amount of alcohol can reach a different BAC on different occasions. In some instances, BAC will not peak for up to two hours after stopping drinking.
Follow these guidelines:
- On a single occasion of drinking, the risk of alcohol-related injury increases with the amount consumed. For healthy men and women, drinking no more than four standard drinks on a single occasion reduces the risk of alcohol-related injury arising from that occasion.
- Over a lifetime the risk of harm from drinking alcohol increases with the amount consumed. For healthy men and women, drinking no more than two standard drinks on any day reduces the lifetime risk of harm from alcohol-related disease or injury.
More information: Alcohol guidelines: reducing the health risks