BAC Calculator Chart

Thousands of web visitors search the Internet monthly to learn their BAC (blood alcohol content) after they consume a certain number of alcoholic beverages. Most of the web surfers are looking up sobriety test information about their likely blood alcohol level after being arrested for DUI. Others are checking BAC levels for types of alcohol like beer, wine, or vodka before going out for an evening of drinking alcohol.

BAC Chart and BAC Calculator

By checking a blood alcohol calculator, an Internet search MAY help an alcohol researcher determine the number of drinks of a certain type and volume (e.g., 12 oz. regular beer) that it would take for him or her to reach the legal alcohol limit. However, those sobriety chart averages can be useless when a person doesn’t monitor his or her drinks being poured (e.g., wine), or consumes high gravity beers or possibly in a container that has more than 12 ounces.

What’s the DUI Legal Limit in Georgia?

The current legal blood alcohol limit in Georgia is .08% for adult drivers (persons age 21 and over) who are NOT operating a commercial motor vehicle (CMV). A CMV operator is held to a stricter standard of only 0.04 grams percent. Various subsections of OCGA 40 6 391 control these legal limit guidelines. Additionally, drivers under age 21 are relegated to a zero-tolerance law that considers the underage driver to be over the legal limit at 0.02 grams percent.

GA Legal Limit Alcohol point 8

The current legal blood alcohol limit in Georgia is .08% for adult drivers (persons age 21 and over) who are NOT operating a commercial motor vehicle (CMV). A CMV operator is held to a stricter standard of only 0.04 grams percent. Various subsections of OCGA 40 6 391 control these legal limit guidelines. Additionally, drivers under age 21 are relegated to a zero-tolerance law that considers the underage driver to be over the legal limit at 0.02 grams percent.

Atlanta DUI Laws .08

The adult BAC limit under Georgia DUI laws was not always so low. Until the mid-1970s, the permissible BAC level was 0.015, before dropping to 0.12. Then, another Legislative session a few years later dropped it to 0.10 grams percent. In 2000, President Bill Clinton signed a new federal law calling for cutting federal highway funds for any state that had a BAC legal limit higher than 0.08 grams percent, and Georgia changed its law to that blood alcohol limit in 2001.

Most states (including for DUI in Georgia) use this underage DUI BAC “number,” since breath alcohol devices are known to have this much variability in yielding breath alcohol results. A smaller number of jurisdictions use 0.01 grams percent and about ten states use 0.00 grams percent.

Many people often ask how many drinks they can have before being over this limit. Unfortunately, there is no one-size-fits-all answer. Everyone is different, and there are multiple factors that come into play when determining BAC and your body’s response to alcohol.

Not Every Blood Alcohol Chart Is Accurate

Like with all web research, not every blood alcohol chart is accurate or reliable in producing a precise “number” that will reflect your legal blood alcohol level. Doing some basic testing at various web locations that have an interactive BAC chart program running, our DUI experts have discovered that the range of answers can vary from 10% to 30%. So, never trust a blood alcohol level chart or “drunk calculator” for an exact answer.

Use Programmable Software for Precise BAC Level Estimates

Sophisticated computer software has been created by several experts in alcohol testing. Probably the best of these programs is the BAC Tracker software. This program allows the user to calculate a person’s specific body “factors” for calculating BAC level through “forward” calculation or “back” calculation. Plus, height, weight, and other variables can be plugged in for a more accurate calculation.

More importantly, the software verifies the plotted “results” by simultaneously checking the blood alcohol content of your test subject against the top, large scientific studies by Erik Widmark, A.W. Jones, Robert Forrest and others, where thousands of male and female human subjects were collected and reported based on gender, body type, and other forensic data.

Use Blood Alcohol Level Chart to Get “Ballpark” BAC Levels

For most individuals, the chart set forth below can be used to estimate your blood alcohol level with a 0.01 to 0.02 grams percent true value. Be aware that peak alcohol level can be affected by a wide variety of factors, including your general health, which mixer you used, timing and type of food consumed BEFORE starting to drink, and the effects of medication on accelerating alcohol entering your bloodstream or certain prescribed drugs causing an adverse synergistic effect.

By knowing how to prepare yourself for imbibing alcohol, you can either help yourself or hurt yourself in keeping your BAC level at a lower peak alcohol level.

You must select the type of alcoholic beverage that allows you to gauge what a “standard drink” will be, whether whisky, beer, wine, cognac or any other beverage. This graphic can help you compare beverages to learn how to identify when a standard dose of alcohol is being used in your drink:

For most individuals, the chart set forth below can be used to estimate your blood alcohol level with a 0.01 to 0.02 grams percent true value. Be aware that peak alcohol level can be affected by a wide variety of factors, including your general health, which mixer you used, timing and type of food consumed BEFORE starting to drink, and the effects of medication on accelerating alcohol entering your bloodstream or certain prescribed drugs causing an adverse synergistic effect.

BAC Calculator Chart - How Much Alcohol in Each Type of Drink

7 Rules for Using a BAC Calculator Over Time

These rules of thumb need to be followed to assure that you are estimating your approximate BAC levels correctly when imbibing. Your objective is to conservatively gauge your lean body mass in calculating the number of drinks and knowing when to extend the “wait” time several more hours before you get behind the wheel.

With the advent of Uber, Lyft and other ride sharing services, plus considering staying on a couch at your friends’ house or being taken to a nearby hotel for the night, fewer excuses currently exist for driving under the influence(DUI). If this advice it too little too late, then hiring the best DUI lawyer in Georgia is your smart choice.

  • The BAC chart shown below assumes no food, but you need to stay with these numbers and not assume that your food intake will “hedge” your BAC results.
  • Monitor the dose of alcohol that is put in your glass. With mixed drinks or wine, the drink can often be a double, and escalate your BAC far over these BAC calculator numbers.
  • Food eaten AFTER you are finished drinking alcohol will not lower your BAC, nor will it diminish your “peak” blood alcohol level. Eat before and during to help lower your peak BAC level.
  • Never assume that doing the so-called field sobriety tests for an investigating officer MAY result in being let go. These roadside “exercises” are not scientific, are NOT graded “normally,” and are designed to gather bogus police evidence for your trial.
  • If you have monitored your alcohol and your “wait” time before driving, you should have no fear of taking the official test requested by the police officer. Remember that breathalyzer tests ONLY show ALCOHOL results, but that blood test results or urine test results show ALL impairing substances. So, if asked for a breath test, be ready to submit, but request an independent test AFTER you have complied with the official forensic breath tests. You need to be able to pay for this blood testing, and (in some states) may need to locate a blood draw nurse, EMT, or phlebotomist.
  • Thanks to pro-prosecution DUI laws, more and more states are obtaining forcible blood draws pursuant to the arresting officer seeking involuntary collection of blood under a judicial warrant. If you refuse the post-arrest forensic breathalyzer test in most states (California, North Carolina, Minnesota, North Dakota, Texas, Arizona, Georgia), your officer has the right under state drunk driving laws to compel blood via a search warrant request that has been presented (by your arresting officer) to a magistrate judge or other judicial officer.
  • By following all other rules not incriminating yourself when being investigated by a law enforcement officer, you will increase your chances of giving your DUI lawyer the best chance to win your case. Remember, what comes out of your mouth in conversation is what convicts most people. Shut up! Give your name and address only. No conversation about anything else, especially how much you had to drink, or your use of marijuana or other prohibited substances! Silence is GOLDEN, just like the blood alcohol chart below.

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Rate of Consumption Affects Elimination Rate

The rate at which you consume alcohol plays a large role in determining your BAC. For an average-sized male (175 pounds) his body can process about one standard serving of alcohol per hour. For a 105-pound female, one drink every two hours is a safe “number” so that her body can process out the ethanol. When the drinker consumes more than this, the excess alcohol saturates your blood and body tissue as it waits to be metabolized by your liver. This is when a person starts to feel a buzz, which is the first sign that the alcohol is starting the process of intoxication.

How Body Weight Affects Level of Intoxication

Body weight also plays a large role in your ability to process alcohol. For example, a man who weighs 225 pounds will have a BAC around .039% after consuming two servings of alcohol, whereas a 150-pound man will have a BAC around .058% after consuming the same amount.

Drinking And Driving: Varying BAC Levels For Men Vs Women

Men and women process alcohol differently due to many physiological factors. For example, women naturally have a smaller percentage of body water than men, which means that a man’s body will dilute more alcohol than a woman’s body. Men naturally have more alcohol-processing liver enzymes than women, which allow men to metabolize alcohol at a quicker rate. Because of these and other physiological factors, a man and a woman of the same size will feel different effects from the same amount of alcohol.

Other Factors Affecting BAC

Multiple other factors can affect the rate at which your body metabolizes alcohol. Some of these factors may include:

  • Body composition
  • Amount and type of food consumed prior to and during drinking
  • Prescription medication or drug use
  • Health of the drinker’s liver
  • Whether the person consuming alcohol used carbonated mixers
  • Ethnic background, since Asians process alcohol at a slower rate

Call the Georgia DUI Law Firm That Knows How to Beat a DUI

Atlanta DUI Law Firm

Call our law firm and speak to one of our top-rated DUI lawyers. William C. “Bubba” Head, ex-cop Cory Yager and Larry Kohn are our three partners. We are honored to have been named to the Georgia attorneys list by U.S. News & World Report for 2019, making our three-person law firm the only on for DUI defense named every year for the LAST DECADE.

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Our law office lawyers for DUI travel the entire state defending drunk driving and DUI-Drugs cases. Or, if you want representation by a local DUI attorney, our criminal law office can refer you to the closest, highly-rated DUI lawyers near me.

Atlanta DUI Lawyers

For the initial legal advice, our award-winning Atlanta attorneys offer a FREE DUI lawyer consultation. This criminal defense website can help you learn how to beat a DUI GA case, and how to defend against high BAC test results. Our office number is 844-832-6384, and our criminal justice attorneys are here to help, day or night.

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Two of William C. Head’s attorney ratings provided by clients he helped with their Georgia criminal cases: