BAC Calculator – Calculate Blood Alcohol Concentration

BAC Calculator

Number of Standard Drinks Consumed

Approximate blood alcohol content will appear here after information is supplied.

Disclaimer

The BAC calculator is designed for educational purposes only. The results it provides are not meant to replace professional medical advice from your doctor or healthcare provider, nor should they be considered legal advice. For specific health concerns, always consult your healthcare provider, and for legal matters, seek professional legal counsel. It’s important to note that no blood alcohol calculator can offer 100% accuracy due to the many factors that affect alcohol consumption in different individuals, besides gender, body weight, and the amount of alcohol consumed in a given time frame. A person’s blood alcohol content can be influenced by their metabolism, health conditions, medications, alcohol use history, and the food or non-alcoholic drinks consumed before or while drinking. The calculator provides a rough estimate based on known factors, but it is not a precise measurement.

BAC – Blood Alcohol Concentration

BAC – Blood alcohol concentration, is commonly measured by the calculator, and the calculator is called the BAC calculator which will give you the accurate result of the Blood Alcohol concentration (BAC). We can also say that this calculator measures alcohol intoxication which is excessive use of alcohol or drunkenness. You can get the results in percentage which is alcohol per volume of blood. You can get the result by hourly, by last drink, by the next morning, by age, by overtime, and many more. This BAC calculator can be used for men & women and also can measure the BAC for breastfeeding ladies.

According to the United States rules, a BAC of 0.08% indicates that 0.08 grams of alcohol per 100 ml of blood is the authorized limit while driving. 0.08% refer to people who are over 21 and it is also the legal age of drinking in the US. That person can face penalties or fines if this limit is exceeded and this rule is different for the under age of 21. 0.01-0.05% is the legal limit for people under 21 and if the BAC increases than the limit then this segment may face heavy penalties or fines. You can check your BAC from the BAC calculator for drivers before driving and it will help you to avoid penalties.

bac-calculator

Factors that Affect your BAC (Blood Alcohol Content/Concentration)

Different factors can affect the BAC of an individual and these are given below:

Amount of Alcohol Consume

This is the main factor, as much alcohol is consumed by the individual, it increases the BAC. BAC value depends upon the alcohol consumed by the individual. It is recommended to not consume alcohol for better health.

Speed to Consume Alcohol

Speed to intake alcohol is also an alarming factor for the drinkers. It also higher the result of BAC because as you consume the alcohol, it increases your BAC as fast as you consume.

Gender

Males & females have different body structures and the amount of water in the body is different. As you know alcohol is water soluble, and its results depend upon the body’s water. The females have less amount of water in their bodies and if they consume the same amount of alcohol at the same time as men. Then the result of BAC in females is higher than the Men.

Person’s height & Weight

An individual’s height & weight also depends upon the BAC results. Because the individual with more weight has more water in the body. For a person with a heavier weight than a less-weight person, the BAC value will be higher in less-weight person than the heavier one. If the height of the person is taller than his weight, then the BAC value will be higher. This phenomenon depends on the alcohol spreads out thinly in the human body.

Person’s Fat/Muscles

As we know alcohol is absorbed in the water and fatty tissues are not rich with the water. It means the amount of alcohol will dissolve more in the less fatty person and has a higher BAC value than the fattier person. Let’s say two people weigh 100 KG, one is tall and the other is small. The tall person has less fat in his/her body as compared to the small-height person. So, the BAC value of a tall person will be higher than of a smaller one.

Person’s Metabolism

The 1st thing that comes to mind is what is metabolism. Metabolism is a process rate of disguising food. From the perspective of a drinker, metabolism is the rate at which alcohol is processed & eliminated from the body. This rate can be different from person to person and the average rate is to eliminate 10ml of alcohol per hour. An individual with liver disease may eliminate alcohol more slowly than a person with a healthy liver. An individual, who is addicted to alcohol and consumes more, may have a higher rate of eliminating the alcohol.

Person’s Age

Young people have a higher rate of metabolism than the older ones. Younger people can eliminate alcohol more quickly than older people.

Empty Stomach

An individual can consume or absorb more alcohol on an empty stomach than the stomach has some food. If you take some food before drinking, then the alcohol will be absorbed in the food and then in your stomach cells. BAC value will be higher in an empty stomach than the food in it.

Blood Alcohol Concentration Elimination Calculator

If you want to check the value of Blood Alcohol Concentration elimination then you can use the BAC elimination calculator and get your latest result. Although, you can follow the below values to confirm your BAC elimination:

Legal Limit = less than 17 mmol/L

Toxic Limit = more than 60 mmol/L

If you get a result below the legal limit then you have to go a clinical trial to confirm the result.

Alcohol and Health

Consuming alcohol is not a good idea because it affects your health on a short-term as well as long-term basis.  Dehydration & intoxication come under short-term effects while in the long-term effects, your metabolism would be changed with the imbalance in the liver & brain. Alcoholism is another term that refers to a person who faces mental or physical health problems due to alcohol.

There is a different school of thought and many researchers have researched the consumption of alcohol and these studies somehow support to consumption of alcohol in one segment of people while others don’t support it. According to conventional wisdom, a glass of red wine a day gives you health benefits but it hasn’t been proven. Another segment may get certain health benefits and it isn’t risk-free. This study applies to a tiny segment but not to all people.

Although, you can say that alcohol has some potential benefits and according to the studies alcohol shouldn’t be consumed despite its tiny benefits. The health benefits related to the consumption of light to moderate alcohol (~1 drink per day: 12 fl oz beer, 5 fl oz wine, 1.5 fl oz distilled spirits) and the risk is also involved. However, the study can’t measure the benefits of little consumption of alcohol than the potential risk involved. The BAC drink calculator helps you measure the amount of alcohol per drink.

Here the some sight of the potential health benefits of the consumption of light-moderate alcohol:

  • Minimizing the risk of diabetes.
  • Minimizing the risk of developing & dying from heart disease.
  • Minimizing the risk of brain failure or ischemic stroke.

As we discussed before, with the potential benefits, risk is also involved while consuming any amount of alcohol. The risk associated with diseases like certain cancers and an accident while taking any amount of alcohol whether it’s moderate to severe. You may face many consequences as you are addicted to alcohol.

Furthermore, we can derive that excessive or moderate use of alcohol has no health benefits and risks involved in the form of diseases or accidental injury. According to the Mayo Clinic, heavy drinking is defined as for women to take more than 3 drinks a day, and for men is 4 drinks per day. Further, 14 drinks a week for men younger than 65 is also considered heavy drinking. The consequences of heavy drinking are directly linked to health issues. Some issues are highlighted below:

  • You are at risk of certain cancers.
  • You may face sudden death due to existing cardiovascular disease.
  • A risk involves damaging the heart muscles.
  • Risk of High Blood Pressure.
  • Risk of an accident (You may die or be seriously injured).
  • Brain Damage or ischemic stroke.
  • Your liver may be damaged or have severe disease.

It is important to tell you that a person should not start drinking for the health benefits and study shows that drinking has a severe impact on health. If you are already taking a moderate to low amount of alcohol then you have to quit it for better health. Because it doesn’t know how the alcohol impacts your body. If you cannot quit it, then you have to consult your doctor. He must tell you about the harness or benefits of alcohol. Your doctor can understand the situation and give you the pattern of alcohol usage.

Effects of Blood Alcohol Concentration

There are a lot of effects of blood alcohol concentration and it varies based on the BAC calculator, and some figures are shown in the table. Alcohol intoxication will lead to different impairments ranging from certain effects that can be detected through special tests. The ranges from 0.001 to 0.029% are considered as the problems with concentration, reflexes & motor control. The range from 0.50% to more is considered as the severity of the alcohol intoxication that may lead to death or severe diseases.

Behavior: Average individual appears normal

Impairment : Subtle effects that can be detected with special tests

Behavior : Mild euphoria Relaxation Joyousness Talkativeness Decreased inhibition

Impairment : Concentration

Behavior : Blunted feelings Reduced sensitivity to pain Euphoria Disinhibition Extraversion

Impairment : Reasoning Depth perception Peripheral vision Glare recovery

Behavior : Over-expression Boisterousness Possibility of nausea and vomiting

Impairment : Reflexes Reaction time Gross motor control Staggering Slurred speech Temporary erectile dysfunction

Behavior : Nausea Vomiting Emotional swings Anger or sadness Partial loss of understanding Impaired sensations Decreased libido Possibility of stupor

Impairment : Severe motor impairment Loss of consciousness Memory blackout

Behavior : Stupor Central nervous system depression Loss of understanding Lapses in and out of consciousness Low possibility of death

Impairment : Bladder function Breathing Dysequilibrium Heart rate

Behavior : Severe central nervous system depression Coma Possibility of death

Impairment : Breathing Heart rate Positional alcohol nystagmus

Behavior : High possibility of death

Impairment : –

Approximate Blood Alcohol Percentage (by volume)

Based on one drink having 0.5 US fl oz (15 mL) alcohol by volume

DrinksSexBody weight
40 kg45 kg55 kg64 kg73 kg82 kg91 kg100 kg109 kg
90 lb100 lb120 lb140 lb160 lb180 lb200 lb220 lb240 lb
1Male0.040.030.030.020.020.020.020.02
Female0.050.050.040.030.030.030.020.020.02
2Male0.080.060.050.050.040.040.030.03
Female0.10.090.080.070.060.050.050.040.04
3Male0.110.090.080.070.060.060.050.05
Female0.150.140.110.10.090.080.070.060.06
4Male0.150.120.110.090.080.080.070.06
Female0.20.180.150.130.110.10.090.080.08
5Male0.190.160.130.120.110.090.090.08
Female0.250.230.190.160.140.130.110.10.09
6Male0.230.190.160.140.130.110.10.09
Female0.30.270.230.190.170.150.140.120.11
7Male0.260.220.190.160.150.130.120.11
Female0.350.320.270.230.20.180.160.140.13
8Male0.30.250.210.190.170.150.140.13
Female0.40.360.30.260.230.20.180.170.15
9Male0.340.280.240.210.190.170.150.14
Female0.450.410.340.290.260.230.20.190.17
10Male0.380.310.270.230.210.190.170.16
Female0.510.450.380.320.280.250.230.210.19
Subtract approximately 0.01 every 40 minutes after drinking.

FAQs – Frequently Asked Questions

Yes, you can calculate your blood alcohol concentration (BAC) value by giving some required information on this website.

BAC can be measured in percentage and it is a result of measuring alcohol in blood and calculated in grams per 100 ml of blood. 0.08 BAC value means that blood has 0.08% alcohol by volume.

Yes, you can calculate the BAC with an empty stomach but the value will be higher than the filled stomach.

The equation varies depending on the units and approximations used, but in its simplest form is given by:

EBAC= A/Vd – B*T

Details of this Formula are:

EBACEBAC is the estimated blood alcohol concentration (in g/L)  
AA is the mass of alcohol consumed (g).  
TT is the amount of time during which alcohol was present in the blood (usually time since consumption began), in hours.  
ββ is the rate at which alcohol is eliminated, averaging around 0.15 g/L/hr.  
VdVd is the volume of distribution (L); typically body weight (kg) is multiplied by 0.71 L/kg for men and 0.58 L/kg for women although estimation using TBW is more accurate.  

You can get the BAC custom results by manually putting the values in this formula.

[(Dose in grams/(Body weight in grams x Distribution ratio “r”)]x100

Where:

  • r (male) = 0.68
  • r (female)= 0.55
  • assuming an average constant rate of -0.016 BAC per hour.