The definition of 'a unit of alcohol' differs depending on which country is being talked about.
One unit of alcohol is defined as containing 10ml or 8g of pure alcohol; the amount of alcohol the average adult can process within an hour. This equates to:
- 1 unit per percentage point abv in one litre of drink
- Approximately a half (imperial) pint (284ml) of 3.5% abv drink (0.994 units)
- 83.¯3ml of 12% abv wine (175ml=2.1 units, 250ml=3 units)
- 25ml measure of 40% abv spirit
f A standard drink is defined as containing 0.6 fluid ounce (17.05ml) or 14.0g of pure alcohol. This equates to
- 12-ounces of 5% abv beer.
- 8-ounces of 7.5% abv malt
- 5-ounces of 12% abv wine.
- 1.5-ounces (44.3ml) or a “shot” of 40% abv distilled spirits or liquor.
A standard drink is defined as containing 12.5ml or 10g of pure alcohol. This equates to
- 375 ml bottle or can of 3.¯3% lager/beer.