Get Ready for Spring Break by Learning to Calculate Your BAC

As the weather finally starts to warm back up—and as the spring breakers start to descend on our beaches—you might find more and more parties and social events appearing on your calendar! But between coming up with fun cocktail combinations or planning your next beach vacation, there is something else you’ll want to do to get ready: learn how to caculate your BAC!

What is BAC?

According to Florida Statutes, any person with a blood alcohol level (BAC) of 0.08 or more grams of alcohol per 100 milliliters of blood is considered to be driving under the influence. This is a serious offense, and for first conviction, can result in a fine of up to $1,000 or up to six months imprisonment. Even more seriously, driving under the influence can ruin lives other than your own, as many drunk driving accidents result in serious injuries or fatalities.

How Weight Impacts Your BAC

Due to the dangers of driving under the influence, it’s important to know how to figure out your BAC.  First, count the number of drinks that you consumed. For calculating BAC, one drink is 1 ounce of 100-proof liquor, one 5 ounce glass of table wine, or one 12 ounce bottle of regular beer.

Next, body weight is factored into the equation. For someone who weighs 160 pounds, one drink would equal a BAC of 0.023, which shows just how easy it is to go over the legal BAC level with just one drink. If someone weighs more or less than average, their BAC might greatly differ from the average. For someone who weighs 240 pounds, one drink would result in a BAC of 0.016, for example, while someone who weighs 100 pounds could have one drink and already have a BAC of 0.038. It is important to be aware of your body weight in regards to alcohol consumption.

The National College for DUI Defense offers a handy calculator for figuring out your BAC, and there are many other ways of calculating your BAC online. However, if you are at a party or a bar with friends, it might be difficult to access a BAC calculator. That is why it is very important to be aware of how many drinks you have had, and to know your limit.

Do Your Part

If your BAC is too high, you have many other options. You could wait to drive home until you are absolutely certain that you are no longer under the influence. However, that is still risky if you do not know your BAC. Instead, you could ask to stay at a friend’s house, get a ride home with a sober friend, or call a taxi or Uber to get you home safely. If you feel impaired, don’t drive. The inconvenience of staying with a friend or calling a taxi is much, much better than getting involved in a drunk driving accident.


The attorneys at Perenich, Caulfield, Avril & Noyes represent those involved in car accidents, motorcycle accidents, bicycle accidents, pedestrian accidents, and other types of personal injury matters. Our firm is one of the oldest personal injury law firms in Tampa Bay. There are no attorneys’ fees or costs unless we prevail for you. Call our office 24 hours a day at 727-796-8282 or simply click here to schedule a free case consultation.


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