Alcohol Calculator

Free Blood Alcohol Content Calculator

Our sophisticated online Blood Alcohol Content or Blood Alcohol Concentration (BAC) calculator is good for estimating your BAC level, but please bear in mind that your actual BAC will vary depending on many different factors, such as your hydration status, recent meals, fluid intake, liver function, percentage of body mass index, body fat, amount and types of drugs in your body, and much more.

How is Our Drunk Calc Accurate And How Accurate Are Other Online BAC Calulators?

Our BAC calculator uses a more advanced algorithm than most of other online BAC calculators. Your body absorbs alcohol differently depending on how much food you've recently eaten. That's why our drunk calculator asks you how hungry you feel! If you're starving, you'll absorb the alcohol faster, whereas if you're full, you'll absorb the alcohol slower. Majority of online BAC calculators don't take this data into account, but it's essential in getting the most accurate BAC estimate! Most online BAC calculators employ a basic version of the Widmark Formula to estimate a user's BAC. The Widmark formula has been reported to have an average uncertainty of around 20%. However it depends entirely on the individual drunk calculator.

Blood alcohol content (abbreviated BAC) is the concentration of alcohol in a person's blood. BAC is commonly used as a metric of intoxication for legal or medical purposes. A BAC reading of 0.08% is legally drunk driving in the United States. Unless a person has developed a very high tolerance for alcohol, a BAC rating of 0.20% represents very serious intoxication - see the table below the calculator.

By using this tool, you acknowledge that any information presented may contain inaccuracies or errors and we expressly exclude liability for any such inaccuracies or errors to the fullest extent permitted by law.

If you’re typing in a custom alcohol percentage, such as absinthe, remember that the proof of an alcohol is double the percent (e.g. 140 proof alcohol is 70% ABV).

Please note that these BAC calculator values are only estimates and that no one should rely solely on these results. The BAC chart does not take into consideration all the factors that can influence the alcohol rate of absorption by the body, such as sex of the drinker, body fat percentage, amount and type of food in the stomach, health issues, metabolism, drinking frequency or medication. Gender and race also play a role. The alcohol is removed from your bloodstream by a combination of metabolism, excretion, and evaporation.

There is no alcohol level chart that is 100% accurate because they differ from individual to individual. If you have consumed alcohol, the best thing to do is not get behind the wheel. It is only safe to drive when you haven't consumed any alcohol or drugs. You should ignore any BAC calculator that tells you that it is safe to drive as long as your BAC is below the legal limit.

If you've been drinking alcohol and the calculator said your BAC is 0.000% it doesn't mean you're sober, it simply means that your BAC hasn't gone up yet. Remember, it takes time for alcohol to be absorbed. Refresh the page after a few minutes, and you'll see it going up. Check the chart above that accompanies your results, and it will show you what your peak BAC will be, and when you'll reach it!

Blood Alcohol Concentration Chart Values

BAC Levels %	Effects of Alcohol
0.00 - 0.02	Normal behavior, no impairment, and no obvious side effects of alcohol consumption.
0.02 - 0.04	You are beginning to show signs of mild euphoria, relaxation and reduced shyness - but no lack of co-ordination or attention.
0.04 - 0.06	Feeling is mildly relaxed, a little lightheaded. Exaggerated behaviour, impairment of judgement and reduced memory. Sensations of warmth and relaxation are likely at this point.
0.06 - 0.10	Buzzed, euphoric, slight impairment of speech, balance, vision and reaction time. Emotions become a bit exaggerated perhaps loud or aggressive. At this point your judgement of self-control and reasoning is reduced.
0.10 - 0.13	You will experience significant impairment of motor coordination and lack of judgement. Judgment is impaired, and there may be difficulty evaluating sexual situations. Your reaction time, balance & hearing will be impaired - as well as slurred speech.
0.13 - 0.16	You’ll experience major motor impairment and lack of physical control, with blurred vision and significant loss of balance. One may believe they are functioning better than they actually are.
0.16 - 0.20	Nausea will likely take effect at this point. The drinker will likely have the appearance of a sloppy drunk. Men may have difficulty achieving or maintaining an erection even if drinking absinthe.
0.20 - 0.25	Total mental confusion and need of assistance with walking. Blackouts are possible alongside nausea and vomiting. Standing can be very difficult. Injury may be caused to the body without realization, as pain may not be felt. Blackouts are likely.
0.25 - 0.40	Unarrousable, loss of bladder function, risk of death. During this level of intoxication, you will likely suffer alcohol poisoning and potentially lose consciousness.
0.40 & UP	At this BAC level you may fall into a coma, or possible death due to respiratory arrest. This is a potentially fatal level of alcohol intake. Seek immediate medical help.

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