Units in alcohol

Units are a clever way to help you know just how strong your drink is.

One unit of alcohol is 10 ml or 8g of pure alcohol. This equals one 25ml measure of whiskey, a third of a pint of beer, or half a standard glass of red wine.  

It takes an average adult one hour to process one unit of alcohol. But that time can differ depending on your height and weight.

Calories in alcohol

Many people are very surprised by the number of calories in alcohol.

Alcoholic drinks are made by fermenting sugar before they are distilled. Being high in sugar means alcohol can contain lots of calories – as much as seven calories a gram. 

Our Unit and Calorie Calculator can tell you exactly how many calories are in your favourite drinks. 

How much is too much?

The UK Chief Medical Officer advises that people should not regularly drink more than the low risk drinking guidelines (14 units a week for men & women).

If you’re worried about how much you’re drinking try our quick and easy alcohol self-assessment.