Showing estimated percentage of alcohol in the blood by number of drinks about body weight. This percent can be estimated by:
1. Count your drinks (1 drink equals 1 ounce of 100-proof liquor, one five ounce glass of table wine or one 12-ounce bottle of regular beer).
2. Use the chart below and under number of "drinks" and opposite "body weight" find the percentage of blood alcohol listed.
3. Subtract from this number the percentage of alcohol "burned up" during the time passed since your first drink. This figure is .015% per hour. (Example: 180 lb. man - 8 drinks in 4 hours / .167% minus (.015x4) = .107 %
