Quickly calculate the number of alcohol units in your drink. Alcohol units are calculated by multiplying the drink's volume by its strength (ABV) and dividing by 1,000.
For a 568 ml drink at 4.5% ABV:
Total Calculated Units:
2.556 Units
Health Guideline: Chief Medical Officers advise that to keep health risks from alcohol to a low level, it is safest not to drink more than 14 units a week on a regular basis.
Alcohol units are a simple way to express the amount of pure ethanol in a drink.
Formula: Units = (Volume in ml × ABV %) ÷ 1,000
If you drink a 568ml pint of cider with a 5% ABV, here is the math:
Health guidelines often suggest a limit of 14 units per week spread over 3 or more days.
Units provide a consistent measurement since bottle sizes and alcohol strengths vary significantly.
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