Health & Lifestyle
Blood Alcohol
Calculator
Estimate your intoxication level. This tool provides a rough estimate of your Blood Alcohol Concentration (BAC) based on the Widmark formula.
BAC Calculator
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Estimated BAC (%)
IMPORTANT: This is an estimate only. Never drink and drive.
What Is BAC?
Blood Alcohol Concentration (BAC) is a measurement of the percentage of alcohol in your bloodstream. For example, a BAC of 0.08% means that there are 0.08 grams of alcohol for every 100ml of blood. In many countries, 0.08% is the legal limit for driving.
Factors Affecting BAC
Several factors influence how alcohol is processed by your body:
- Weight: Heavier individuals generally have more body water to dilute the alcohol.
- Gender: Men typically have a higher percentage of body water than women.
- Time: The liver processes alcohol at a constant rate (roughly 0.015% per hour).
- Food: Eating before or while drinking slows down the absorption of alcohol.