What is a "unit" of alcohol?!
What is a "unit" of alcohol?
Answers:
It is an ounce (oz)
In some countries a system of units of alcohol is employed for an approximate measure of the amount of alcohol in different drinks.
A unit of alcohol is equivalent to 10 millilitres (or approximately 8 grams) of pure ethanol, the active chemical ingredient in alcoholic beverages.
The number of units of alcohol in a drink can be determined by multiplying the volume of the drink (in millilitres) by its percentage ABV, and dividing by 1000.
A very small glass of wine, a small glass of sherry, a single measure of spirits and a half pint of beer each contain about one unit, or 8 g (0.25 oz) of alcohol.
A smallish 125ml glass of red or white wine or half a pint of cider contains about one and a half units.
Strong pale lager may contain as much as two units per half pint.
A larger 175ml glass of wine contains two to two and a half units.
A 750ml standard bottle of 12% wine contains around 9 units. Many wines are actually around 14.5%, which is nearly 11 units per bottle.
A 500ml can/bottle of standard lager generally contains around 2.5 units.
12 oz beer=4 oz wine=1 oz hard liquor are roughly equivalent in alcohol content and constitute one serving. (some beers and liquor are higher in alcohol due to manufacturing -like light beer is different than stout and 151 is an especially potent alcohol vs. regular vodka)
Alcohol is sold and taxed by proof volume e.g. 80 proof is 40% alcohol.