Drinkaware's unit calculator helps you work out how many units of alcohol you drank last night, along with the number of calories from alcohol you consumed. You then have the option to sign up to a drinks diary and track your drinking over time.
Government guidelines on alcohol units
The Government's guidelines say that a man should not regularly drink more than 3-4 alcohol units a day and a woman should not regularly exceed 2-3 units a day.
Calories in alcohol
The unit calculator shows you the number of calories in the alcohol you have consumed. Many people are very surprised by the number of calories in alcoholic drinks- it is easy to make the mistake of thinking that drinks are calorie-free.
What is an alcohol unit?
One alcohol unit is measured as 10ml or 8g of pure alcohol. This equals one 25ml single measure of whisky (ABV 40%), or a third of a pint of beer (ABV 5-6%) or half a standard (175ml) glass of red wine (ABV 12%).
To find out more about alcohol units, calories in alcohol and the impact drinking can have on your health, take a look at our Facts section. If you're worried about your drinking, you should consult your GP.
Can’t find your drink?
Work out your alcohol units for yourself with this handy sum: Strength (ABV) x Volume (ml) ÷ 1000 = No. of units.
