Alcohol Units
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Definition
The definition of 'a unit of alcohol' differs depending on which country is being talked about.
United Kingdom
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[1]. 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
United States
f A standard drink is defined as containing 0.6 fluid ounce (17.05ml) or 14.0g of pure alcohol[2]. 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.
Australia
A standard drink is defined as containing 12.5ml or 10g[3] of pure alcohol. This equates to
- 375 ml bottle or can of 3.¯3% lager/beer.