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Blood Alcohol Concentration Charts

The tables below are typical representations of various charts you can find which are used to estimate blood alcohol concentration given a person’s gender, weight and number of drinks consumed.  Interestingly, if you look at several charts and blood alcohol concentration calculators online, you will notice that the same information will yield different results on the various calculators and charts.  This should help you understand that estimating, predicting and even measuring blood / breath alcohol concentration is educated guess work, at best.  

In reality there are far too many variables involved to accurately estimate or predict a person’s BAC simply based on gender, weight and number of standard drinks consumed.  Therefore, although the various blood alcohol concentration charts and calculators which are available provide interesting information, you should never rely upon such an estimate or prediction.  The only foolproof way to avoid being arrested for a DUI in Virginia is not to drive after drinking any alcoholic beverages.   


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