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What is a Blood Alcohol Calculator (BAC)?

You can reach us at (Ravenna) 330-296-8000 and (Stow) 330-686-2890

A Blood Alcohol Calculator or your Blood Alcohol Concentration is a rough estimate of how much alcohol you have in your body. Or, it’s a rough estimate of how intoxicated you are.

Please enter the following items, then click on Calculate to obtain your Blood Alcohol Content estimate.


Estimates Are Provided For Educational Purposes Only. Do Not Drink And Drive! Do Not Use These Estimates As A Basis For Making A Decision About Drinking Or Driving.

Different Stages Of Intoxication

The effects of alcohol intoxication are greatly influenced by individual variations among users. Medications and lack of food may further compound the effects of alcohol. Some users may become intoxicated at a much lower Blood Alcohol Concentration (BAC) level than is shown.

Here are some common effects at different levels of intoxication:

Relaxation Zone

  • 0.02-0.03 BAC: Slight euphoria and loss of shyness. Mildly relaxed and maybe a little lightheaded.

Euphoric Zone

  • 0.04-0.06 BAC: Feeling of well-being, relaxation, lower inhibitions, sensation of warmth or euphoria. Some minor impairment of reasoning and memory, lowering of caution. Your behavior may become exaggerated and emotions intensified (Good emotions are better, bad emotions are worse).

Judgement Reduction Zone (DUI)

  • 0.07-0.09 BAC: Slight impairment of balance, speech, vision, reaction time, and hearing. Some sense of euphoria. Judgment and self-control are reduced, and caution, reason and memory are impaired. You will probably believe that you are functioning better than you really are.

Motor Impairment Zone (Sloppy Drunk)

  • 0.10-0.125 BAC: Significant impairment of motor coordination and loss of good judgment. Speech may be slurred; balance, vision, reaction time and hearing will be impaired. Euphoria.
  • 0.13-0.15 BAC: Gross motor impairment and lack of physical control. Blurred vision and major loss of balance. Euphoria is reduced and dysphoria (anxiety, restlessness) is beginning to appear. Judgment and perception are severely impaired.
  • 0.16-0.19 BAC: Dysphoria predominates, nausea may appear. The drinker has the appearance of a sloppy drunk.

Blackout Zone (Coma Or Possible Death)

  • 0.20 BAC: Feeling dazed, confused or otherwise disoriented. May need help to stand or walk. If you injure yourself you may not feel the pain. Some people experience nausea and vomiting at this level. The gag reflex is impaired and you can choke if you do vomit. Blackouts are likely at this level so you may not remember what has happened.
  • 0.25 BAC: All mental, physical and sensory functions are severely impaired. Increased risk of asphyxiation from choking on vomit and of seriously injuring yourself by falls or other accidents.
  • 0.30 BAC: Drunken stupor. You have little comprehension of where you are. You may pass out suddenly and be difficult to awaken.
  • 0.35 BAC: Coma is possible. This is the level of surgical anesthesia.
  • 0.40 BAC and up: Onset of coma, and possible death due to respiratory arrest or alcohol poisoning.


The website is designed for general information only. Any information on this site is not to be construed as formal legal advice from a criminal defense lawyer, a DUI lawyer, a family law lawyer, or estate planningwillstrusts, and probate lawyer, nor the formation of a lawyer/client relationship. Persons accessing this site are encouraged to seek personal advice regarding their individual legal issues.

The attorneys in our law firm primarily service Portage County courts (Ravenna and Kent) from our office in Ravenna and Summit County courts (Akron, Stow, Barberton) from our office in Stow. Cases in all other courts in North East Ohio, such as Cuyahoga County courts, are handled under specific terms and conditions.