20-Jun-2007, 11:24 PM
Frank , There was a very concise answer to your question in Wikipedia.
************** Formula
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.
Thus a pint (568ml) of beer at 4% ABV contains
Also, in the metric system of measuring, there is 1 unit in 1 litre of a 1% ABV drink.
Quantities
As a rough guide:
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. *************
I have to admit to being suprised at just how many units there were in various drinks and indeed how much they varied from drink to drink.
************** Formula
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.
Thus a pint (568ml) of beer at 4% ABV contains
Also, in the metric system of measuring, there is 1 unit in 1 litre of a 1% ABV drink.
Quantities
As a rough guide:
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. *************
I have to admit to being suprised at just how many units there were in various drinks and indeed how much they varied from drink to drink.
Jim