A standard drink , or one alcoholic drink equivalent, is a measure of alcohol consumption representing a fixed amount of pure alcohol (ethanol) in a drink. This measure helps individuals understand and compare the alcohol content in various drinks. However, standard drink sizes can differ between countries, so it’s essential to be aware of local definitions when assessing alcohol intake. For example, according to Health Hub SG, a standard drink contains 10g of pure ethanol, while a standard drink in the UK has 8g of ethanol and 14g of ethanol in the US.

ABV, short for Alcohol by Volume, is a standard measurement used to express the alcohol content in a beverage as a percentage. It is defined as the number of milliliters (ml) of ethanol present in 100 ml of a specific alcoholic beverage. For example, if a bottle of wine has an ABV of 12%, it means there is 12 ml of ethanol per 100ml of wine in that bottle.

Blood Alcohol Concentration, often abbreviated as BAC, is a measure of the amount of alcohol present in a person’s bloodstream. It is expressed as a percentage and is used to assess a person’s level of intoxication. For example, a BAC of 0.10% means that an individual’s blood contains one part of alcohol for every 1000 parts of blood.