For women, sizes are based on the US size scale. Your Australian (AU) size is the same as the US size. For men, sizes are based on the UK size scale. Your Australian (AU) size is the same as the UK size.
Australian shoe sizes are equal to American shoe sizes, so if you're purchasing footwear from a US-based retailer, you should find the fit is the same. If you're buying from a UK-based store, go down 2 sizes.
Many people don't realize that Australia is really large, in-fact its about the same size as continental USA.
As an average, a Medium is likely to be a around a size 12. Generally a Small will be an AU 8-10 and a Large an AU 14-16. An Extra Small is likely to be a size 6, with an Extra Large likely to be a size 18.
We may have become accustomed to constant chopping and changing between an S or an M, but most of us are in agreement that a size 14 is by no means an XL, as it was described in Asos's size guide this week.
While a size XL is designed to fit a size 16/18, she may prefer to wear a size 1X which equates to a size 14/16. This is because the plus size section was designed with curves in mind.
In the US clothing industry, sizes 14 and above are typically considered “plus size,” though not everyone who falls into that range identifies or agrees with the term.
XL means extra large and translates to women's sizes 16–18. This is generally considered plus size clothing.
What dress size is a 'Medium'? This varies from brand to brand and by country. Some stores will consider a medium to be a size 10, while others a size 12-14. As an average, a Medium is likely to be a around a size 12.