Blood Alcohol Calculator

Blood Alcohol Content (BAC) refers to the level of alcohol in a person's bloodstream. When you submit to a breath test, you agree to allow the administrator of that test to measure your BAC. The results of two people who consume the same amount of alcohol over the same time period may have vastly different results due to height, weight, body fat, sex and whether or not the alcohol was consumed on an empty stomach. A breath test is not a foolproof method of determining BAC. Simply input your information below, and this calculator will give you a ballpark reading of what your BAC should have been in a particular circumstance.

DISCLAIMER: This tool is not intended to be used as a determinant for an individual's ability to drive or perform tasks following consumption of alcohol or drugs.

1. NUMBER OF DRINKS:
1 2 3 4 5 6 7 8

2. WHAT ARE YOU DRINKING?
Reduced alc. Beer 12oz Light Beer 12oz Light Canadian Beer - 12oz 2.41%abv Canadian Beer - 341ml 5%abv Canadian Beer - 500ml 5%abv Canadian Beer - 500ml 10%abv Imported Beer 12oz Beer 12oz Malt Liquor 12oz Common Table Wine 5oz Champagne 5oz Bloody Mary Gin and Tonic Highball Irish Coffee On the Rocks Pina Colada Screw Driver Tom Collins Whiskey Sour Margarita Airline Miniature Gimlet Old Fashioned Mint Julep Black Russian Dry Martini Fortified/Dessert Wine 5oz Manhattan Rob Roy Double On the Rocks Frozen Daiquiri Harry Buffalo

3. HOW MUCH DO YOU WEIGH?:
100 120 140 160 180 200 220 240

4. HOW MANY HOURS HAVE YOU BEEN DRINKING?
0 hours 1 hour 2 hours 3 hours 4 hours 5 hours

Your Results

Theoretical BAC %:
Analysis: