About Australia Bra Sizing
Australia uses single-digit dress-style band sizes (8, 10, 12, 14, 16, 18, 20, 22, 24). AU 12 ≈ UK/US 34.
Australia Band & Cup Reference
Here is the complete band and cup reference for Australia sizing alongside the US equivalent for easy conversion.
| Australia band | US band equivalent | Australia cup letters |
|---|---|---|
| 8 | 30 | AA · A · B · C · D · DD · E · F |
| 10 | 32 | AA · A · B · C · D · DD · E · F |
| 12 | 34 | AA · A · B · C · D · DD · E · F |
| 14 | 36 | AA · A · B · C · D · DD · E · F |
| 16 | 38 | AA · A · B · C · D · DD · E · F |
| 18 | 40 | AA · A · B · C · D · DD · E · F |
| 20 | 42 | AA · A · B · C · D · DD · E · F |
| 22 | 44 | AA · A · B · C · D · DD · E · F |
| 24 | 46 | AA · A · B · C · D · DD · E · F |
Cup Letter Differences
The Australia system uses these cup letters in order from smallest to largest:
AA → A → B → C → D → DD → E → F → FF → G → GG → H
How to Convert From Australia to Other Systems
To convert your Australia bra size to another system, change the band first, then the cup:
- Band conversion: add 22 to your AU number to get the US/UK inch band.
- Cup conversion: A–D is universal. Past D, US uses DD/DDD, UK uses E/F/FF, and EU/JP/BR use single letters E/F/G or numeric 1/2/3.
Best Brands Sold in Australia
Berlei, Bras N Things, Bonds, and Cake Maternity are big in Australia.