Units = (Volume ml x ABV%) / 1000
Enter each drink with its volume in milliliters, alcohol by volume (ABV) percentage, and quantity. The calculator computes units using the standard UK formula, estimates calories based on pure alcohol content, and projects your weekly intake and metabolism time.
An Alcohol Unit Calculator measures the amount of pure alcohol in your drinks using standardized units. One unit equals 10ml (or 8g) of pure alcohol -- roughly the amount an average adult can process in one hour. Understanding units helps you track consumption against health guidelines.
Most health organizations recommend no more than 14 units per week, spread across 3 or more days with alcohol-free days in between. This calculator also estimates the calorie content of your drinks, which is often overlooked -- alcohol is calorie-dense at 7 calories per gram of pure alcohol.
The UK Chief Medical Officers recommend that both men and women should not regularly drink more than 14 units per week. If you do drink as much as 14 units per week, spread your drinking over 3 days or more. If you wish to cut down, try having several alcohol-free days each week.
Your body metabolizes approximately one unit of alcohol per hour, though this varies by weight, gender, metabolism, and whether you have eaten. Drinking on an empty stomach speeds absorption and intensifies effects.
Important Note
This calculator provides estimates for educational purposes only. Alcohol affects individuals differently based on weight, tolerance, medication interactions, and health conditions. If you are concerned about your alcohol consumption, please consult a healthcare professional. Never drink and drive.