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Estimated Blood Alcohol Concentration After One Hour

A good rule of thumb is that one drink is metabolized to the point of elimination from the bloodstream each hour. Therefore, typically, if you have one drink, waiting one hour before driving is a good idea.

Blood Alcohol Content (BAC) Chart

Number of DrinksBody Weight (Pounds)
100120140160180200220240
1.04.03.03.02.02.02.02.02
2.06.06.05.05.04.04.03.03
3.11.09.08.07.06.06.05.05
4.15.12.11.09.08.08.07.06
5.19.16.13.12.11.09.09.08
6.23.19.16.14.13.11.10.09
7.26.22.19.16.15.13.12.11
8.30.25.21.19.17.15.14.13
9.34.28.24.21.19.17.15.14
10.38.31.27.23.21.19.17.16

Remember that other factors can influence and increase or decrease one's Breathalyzer concentration. These include fatigue, having eaten and the type of drink.

If charged with a DUI or DUAC, get advice from a lawyer before doing anything else. For a free initial consultation with an experienced attorney, please email me or call 864-236-4631.