What’s a standard drink?

In Australia, one standard drink is any drink that contains 10 grams of alcohol. All bottles, cans and casks of alcohol packaged for sale are required by law to state on the label the approximate number of standard drinks they contain.

What's in a standard drink 

One standard drink equals: 
285 ml of beer (one glass of beer)
100 ml of wine (one small glass of wine) 
30 ml of spirits (one measure of spirits)
It can sometimes be difficult to estimate standard drinks in real life situations because:
  • Glass sizes vary and measurements are not printed on glasses so it can be hard to judge.
  • People share drinks e.g. jugs, casks, bottles of alcohol
  • Glasses are topped up by other people
  • Composition of mixed drinks is not known.