How Australian Bra Sizing Works

Australian bra sizing is unique in that it uses dress sizes for band sizes rather than inches or centimeters. Standard AU band sizes are: 8 (equivalent to US/UK 30), 10 (US/UK 32), 12 (US/UK 34), 14 (US/UK 36), 16 (US/UK 38), 18 (US/UK 40), 20 (US/UK 42), 22 (US/UK 44), and so on. The conversion formula is simple: subtract 22 from your AU band size to get the US/UK equivalent, or add 22 to your US/UK band to get AU.

For cup sizes, Australia follows the UK cup progression after D: A, B, C, D, DD, E, F, FF, G, GG, H, etc. This means Australian sizing combines a unique band numbering system with the consistent UK cup progression. An AU 12DD is equivalent to a UK 34DD and a US 34DD.

Major Australian brands include Berlei (known for excellent sports bras and everyday support), Bonds (affordable everyday basics), Bendon (quality construction), Pleasure State (luxury fashion), and Bras N Things (trendy styles). These brands use AU sizing as their primary system, and their bras are designed for Australian body types.

When shopping at Australian retailers like Myer, David Jones, or The Iconic, always look for the AU band size (dress size number) rather than inches. If you are a US 34C, look for AU 12C. Many Australian department stores offer free professional fitting services — this is the easiest way to find your exact size in the local system.