Alcohol Unit Calculator
Understanding how many units of alcohol you consume helps you make informed decisions about your drinking. Enter your drinks to see total units, calories, and how long your body needs to process the alcohol. Compare your weekly intake to UK Chief Medical Officers' guidelines (14 units per week).
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About alcohol units
One UK alcohol unit equals 10 ml (8 g) of pure ethanol. The formula is simple: multiply the volume in millilitres by the ABV percentage, then divide by 1,000. For example, a pint (568 ml) of 4.5% beer contains 2.56 units.
The UK Chief Medical Officers recommend no more than 14 units per week for both men and women, spread across three or more days. Regularly drinking above this level increases the risk of liver disease, certain cancers, heart disease, and mental health problems.
Your body processes roughly one unit of alcohol per hour, though this varies with weight, sex, metabolism, and food intake. Calorie estimates are approximate. This tool is for informational purposes only and is not a substitute for medical advice.
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Frequently Asked Questions
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