BLOOD-ALCOHOL CHART

The percentage of alcohol in your blood can be estimated by COUNTING YOUR DRINKS (1 drink equaling 1 volume oz. of 100 proof alcohol, one 12 oz. bottle of beer, or 5 oz. of table wine).

Estimating Blood Alcohol Content (BAC)

To estimate your BAC, reference the chart below and SUBTRACT the percentage of alcohol “burned up” during the time elapsed since your first drink.

Alcohol “Burned Up” Over Time:

• 1 Hour: Subtract .015%
• 2 Hours: Subtract .030%
• 3 Hours: Subtract .045%
• 4 Hours: Subtract .060%
• 5 Hours: Subtract .075%
• 6 Hours: Subtract .090%

Example calculation: A 180 lb. man has 8 drinks in 4 hours. His base BAC from the chart is .167%. After subtracting .060% (for 4 hours), the estimated BAC is .107%.

Driving Status and Intoxication Levels

Estimated BAC Chart by Body Weight and Number of Drinks

The following table provides the estimated BAC before subtracting for time elapsed.

FOR BEST RESULTS – DON’T DRINK AND DRIVE