Blood Alcohol (BAC) Calculator
Provide your gender, weight, ammount and type of the alcoholic bewerages you consumed and the BAC calculator will estimate your current blood alcohol content. Please note, that the calculation result is more of an estimation, exact amount of alcohol’s level in blood can only be obtained by blood, breathe (breathalyzer) or urine tests.
Tool for estimating the alcohol content (also referred as blood ethanol concentration, blood alcohol concentration and blood alcohol level) in your blood based on predefined properties like gender, weight and drinking history. The BAC result is expressed is percentages which presents the relative ammount of ethanol compared to the ammount of the blood in your body.
BAC result of .1 means that 0.10% (one tenth of one percent) of your blood volume is alcohol.
Metabolism and tolerance
There is no rule of a thumb for determining your alcohol metabolism rate. It’s individual and depends on numerous factors, but several studies shown that people below 25 years, persons of some ethnicties and individuals with liver disease may process alcohol more slowly. Estimatedly 95% of the consumed alcohol is processed by the liver. Also the amount of fructose consumed is playing a lead role in alcohol metabolism. The effect can vary significantly from person to person, but a 100g dose of fructose has been shown to increase alcohol metabolism by an average of 80%.
Also in case of ingesting alcohol on full stomach the alcohol absorption is slowed down considerably – but still all of it gets absorbed. Because of this it is considered to decrease the risk of hangover because the peak alcohol content in the blood is going to be a decreased and absorbtion spread over a greater period of time.
Units of measurement
Aside of percents there are some other units used to measure the blood alcohol content but generally all of them are calculating the result by dividing the mass of alcohol by the volume or mass of blood.
In most countries of Europe like (Austria, France, Latvia, Lithuania, Netherlands, Poland, Romania, Spain, Switzerland, Turkey) BAC is expressed in permille (‰). 1‰ (permille) equals 0.1% (percent).
In Great Britain basis point is used for determining the BAC levels. 1‱ (basis point) equals 0.1‰ (permille).
In some cases instead the volume of the blood the mass of the blood is used which gives similar but not the same results than the volume based calculations because 1 milliliter of blood approximately equals 1.06 grams of blood.