Welcome to Blood Alcohol Calculator, the Original BAC Calculator. Calculating Blood Alcohol Content (BAC) is fast, easy and fun. Blood Alcohol Content is the amount of alcohol in the bloodstream that is measured by grams of alcohol per 100 grams of blood. Here is an example, if you have 8 grams of alcohol in 10,000 grams of blood, that’s 0.08% BAC. The legal driving limit in the USA is also 0.08% BAC if you’re over the age of 21. Calculating BAC has many variables, so take this calculator as an approximation. Our website is geared towards providing safe drinking tips from Lawyers, Doctors and people who love drinking. We have articles about understanding BAC, as well as fun places to go for a few drinks. We have breathalyzers for sale for those who are looking to purchase a professional breathalyzer. The breathalyzers we sell are highly advanced and highly accurate, approved by many health and safety organizations throughout the USA. Our website also has a DUI Lawyer Directory that has fully licensed DUI Lawyers that are available to represent you, should you need a lawyer. We also support an organization designed to prevent students from drinking and driving, you can take the pledge yourself here:

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