Estimate Blood Alcohol Concentration

This small app helps you estimate your current %BAC (blood alcohol concentration) as well as how long it will take until you are sober. Note that the legal limit for driving varies a lot between countries or even between states or counties.

The results are computed using a formula based on alcohol pharmacokinetics research by E.M.P. Widmark. This formula tries to be as accurate as possible, but it does not take into account advanced factors that may influence the BAC such as age, amount of food ingested (if any) and others. The most accurate method to measure the %BAC is using a breathalyzer.

See bottom of this page for a brief description of the effects of alcohol on the human body broken down by BAC levels.

BAC CALCULATOR

   country
   weight
   gender
   beverage
   quantity
   strength
% alcohol
   started drinking
hours ago

RESULTS

Waiting for data input...

ALCOHOL EFFECTS BY BAC LEVEL

0.10-0.50Average individual appears normal
0.30-1.20Mild euphoria, talkativeness, decreased inhibitions, decreased attention, impaired judgment, increased reaction time
0.90-2.50Emotional instability, loss of critical judgment, impairment of memory and comprehension, decreased sensory response, mild muscular incoordination
1.80-3.00Confusion, dizziness, exaggerated emotions (anger, fear, grief) impaired visual perception, decreased pain sensation, impaired balance, staggering gait, slurred speech, moderate muscular incoordination
2.70-4.00Apathy, impaired consciousness, stupor, significantly decreased response to stimulation, severe muscular incoordination, inability to stand or walk, vomiting, incontinence of urine and feces
3.50-5.00Unconsciousness, depressed or abolished reflexes, abnormal body temperature, coma; possible death from respiratory paralysis
* Source: Flight Physical