DUI Calculator – What’s My BAC? – Calculating BAC

By: William C. Head, DUI Lawyer Atlanta GA

Thousands of Americans go to the internet daily seeking to find an alcohol level DUI calculator. If I want to calculate my BAC, multiple factors about the drinker must be known to calculate blood level. Most people will not be carrying an alcohol blood level calculator, nor a BAC calculator chart. Some smartphone users have likely downloaded a blood alcohol content calculator “app”, but these are usually not used once a person has started drinking alcohol.

What’s my BAC?

To answer the daily question, “What is my BAC?”, you will need to know many basic factors to plug into a BAC level calculator, including:

  1. Gender – men tend to process alcohol better than women based upon BAC by weight, since women are genetically predisposed to carrying more body fat. This is because childbearing favors this type of body. By way of example, a man of 170 pounds versus a woman at 170 pounds may have drastically different body types. Assume the woman is 5’1” tall, and the man is 6’1” tall. Since only “lean body tissue” (muscle) processes alcohol out of the body, the obese woman should calculate her lean body weight at 100 pounds. The man is already at a normal-to-low lean body weight. Using ballpark estimates to calculate alcohol level, he can drink about 2 of the same type, quantity, and proof level drinks to calculate blood alcohol.
  2. Don’t simply look for BAC by weight, in light of only muscle tissue processing alcohol. A 115 pound MMA fighter, male or female generally has near zero body fat, and these athletes may be 5’7” tall or so. He or she can skew any standard BAC chart for male drinkers or BAC chart for female drinkers, in light of this abnormally “fit” body composition.
  3. Knowing the alcohol content of your beverage is critical, since booze comes in all sizes, shapes, and mixtures in pre-packaged or bar-poured containers. Three quick examples of wide variation in drink delivery – both in ounces of alcoholic beverage and in proof level — makes a huge difference. In the blood alcohol calculator business, whether an online system or pre-printed “calculate my BAC” chart, EVERY alcohol level calculator utilizes “a standard drink” equation. A standard BAC calculator chart looks like this:

BAC Calculator
So, a “standard drink” means that the above types of alcoholic beverages have roughly the same amount of pure ethanol (alcohol) in each. Many people may dilute a liquor drink with Coca-Cola or Sprite, and some wine drinkers may dilute wine with sparkling water or ginger ale.

Time is the most vital blood alcohol calculator factor. This rule is fairly simple. The human body, on average, can only ELIMINATE (burn off) a 0.015 gram percent of ethanol. So by waiting 1 hour, you only burn off a fraction of a drink. First, look at the chart below and then deduct for time. So long as no more ethanol is added, the person drinking any of the 3 described alcohol drinks will be ingesting approximately the identical amount of “poison” (alcohol) into his or her body.

Drink Calculator – BAC Estimator – BAC Calculator Over Time

# of Drinks Consumed

Body Weight 1 2 3 4 5 6 7 8 9 10 11 12
100 lb. .038 .075 .113 .150 .188 .225 .263 .300 .338 .375 .413 .450
110 lb. .034 .066 .103 .137 .172 .207 .241 .275 .309 .344 .379 .412
120 lb. .031 .063 .094 .125 .156 .188 .219 .250 .281 .313 .344 .375
130 lb. .029 .058 .087 .116 .145 .174 .203 .232 .261 .290 .320 .348
140 lb. .027 .054 .080 .107 .134 .161 .188 .214 .241 .268 .295 .321
150 lb. .025 .050 .075 .100 .125 .151 .176 .201 .226 .251 .276 .301
160 lb. .023 .047 .070 .094 .117 .141 .164 .188 .211 .234 .258 .281
170 lb. .022 .045 .066 .088 .110 .132 .155 .178 .200 .221 .244 .265
180 lb. .021 .042 .063 .083 .104 .125 .146 .167 .188 .208 .229 .250
190 lb. .020 .040 .059 .079 .099 .119 .138 .158 .179 .198 .217 .237
200 lb. .019 .038 .056 .075 .094 .113 .131 .150 .169 .188 .206 .225
210 lb. .018 .036 .053 .071 .090 .107 .125 .143 .161 .179 .197 .215
220 lb. .017 .034 .051 .068 .085 .102 .119 .136 .153 .170 .188 .205
230 lb. .016 .032 .049 .065 .081 .098 .115 .130 .147 .163 .180 .196
240 lb. .016 .031 .047 .063 .078 .094 .109 .125 .141 .156 .172 .188

 

A substantial number of web surfers are seeking BAC calculator information to be able to learn how to beat a breathalyzer test. Some are researching an existing DUI charge, and don’t believe the reported breath alcohol test is accurate. The value of this simple chart is to first be realistic about your lean body weight. Then, look at the number of standard drinks. You can’t let a fancy restaurant that charges $12 per glass and pours you DOUBLES overestimate “1 standard drink” that is between 8 oz and 10 oz each drink, so count each glass as two drinks.

Finally, any blood alcohol calculator over time must allow for sufficient time to metabolize enough alcohol to calculate alcohol content before driving. If an error is made, err on the side of not being over the limit for driving under the influence.

How does my tolerance affect a blood test for alcohol?

Drunk driving lawyers have heard many clients argue that they were not drunk, but the officer still arrested him or her. Police are keenly interested in getting the blood alcohol level test from you, because they know that tolerance does not matter in a DUI per se drunk driving case. Instead of focusing on “what blood alcohol level is drunk,” look at the BAC blood readings or the breath alcohol test numbers. THIS is what your prosecutor will use to try to convict you at court.

Will I pass a drunk driving test? How to beat a DUI?

Drunk driving defense is a complex and difficult practice area for attorneys. In the past 70 years, the “acceptable” sobriety test number for adult motorists went from 0.15 in 1946, to 0.10 in the 1960s, to 0.08 for all States by 2005. Today, anti-DUI opponents are pushing for a new legal limit of 0.05 in America. This is the standard used in most of Europe.

So, if this is how DUI per se cases will be judged soon, being familiar with all of the above human factors, in utilizing any drunk calculator, may save your right to drive. Look at a reliable and accurate alcohol BAC calculator, and be conservative in calculating your blood alcohol level over time. That is how you beat a breathalyzer test, if you are pulled over after consuming alcoholic beverages. And that is how to beat a DUI!