A single shot of hard liquor is explicitly 1 unit. 1 standard serving is 25ml, *40% (standard for whiskey and vodka ) = 10ml = 1 unit. So 14 units is 14 shots.
This is not a coincidence. It's why they call it a "unit", and why the standard "single shot size" is 25ml.
(The other measurements are fine)
Edit: caveat: I'm European. This may be different in the us!
The UK even has two choices: either 25mL or 35mL. The bar must have a sign saying which measure they use, it's usually fairly clear once you know where to look.
Alcohol strength is indicated with Alcohol by Volume (ABV) as a percentage.
UK drinks are usually measured in ml, apart from pints and half pints. (One pint is 568 ml).
To work out the units you multiply the serving size in litres by the abv value.
Assuming your bottles are 330 ml, and the beer is 5%, and you have 5 per week, you'd be drinking a bit under 9 units.
This is comfortably under the current UK levels, which are no more than 14 units a week with some days drink free and don't "save up" the units for a weekend.
For context: People in England drink, and they drink a lot. There are many people who have a couple of glasses of wine most evenings, and these people don't think they have a problem even though they're drinking quite a lot.
Public Health England have a nice website called "Fingertips" that collates a bunch of public health data.
> Deaths from liver disease are increasing in England. This is in contrast to most EU countries where liver disease deaths are falling. In 2014 the number of people who died with an underlying cause of liver disease in England rose to 11,597. This rise is in contrast to other major causes of disease which have been declining. Liver disease is largely preventable. Whilst approximately 5% is attributable to autoimmune disorders (diseases characterised by abnormal functioning of the immune system), most liver disease is due to three main risk factors: alcohol, obesity and viral hepatitis.
7-9 (US) shots of hard alcohol (assumed 37.5% ABV) 7 pints of Lager (assumed 4% ABV) 9.3 125 ml glasses of average strength wine (assumed 12% ABV)
Looks like my 2-5 bottles of beer a week habit is fine. :)
http://www.independent.co.uk/life-style/health-and-families/...