AU Size 12B in US — Women's Bras
AU 12B =
US 34B
Australian (AU) women's bras size 12B converts to United States (US) size 34B. This is a standard conversion used across most major bras brands and retailers.
When shopping from United States brands like Victoria's Secret, ThirdLove, Wacoal, look for size 34B on the label. Keep in mind that sizing can vary slightly between brands, so always check the specific brand's size chart if available.
For reference, one size down (AU 12A) is US 34A, and one size up (AU 12C) is US 34C. If you're between sizes, most fitting guides recommend sizing up for comfort.
This conversion is especially useful for international shoppers purchasing women's from United States retailers or ordering Australian-sized products from brands like Berlei or Bonds to ship internationally.
Quick Converter
AU 12B =
US 34B
Full AU to US Women's Bras Size Chart
| AU | US |
|---|---|
| 8A | 30A |
| 8B | 30B |
| 8C | 30C |
| 8D | 30D |
| 8DD | 30DD |
| 10A | 32A |
| 10B | 32B |
| 10C | 32C |
| 10D | 32D |
| 10DD | 32DD |
| 10E | 32DDD |
| 12A | 34A |
| 12B | 34B |
| 12C | 34C |
| 12D | 34D |
| 12DD | 34DD |
| 12E | 34DDD |
| 14A | 36A |
| 14B | 36B |
| 14C | 36C |
| 14D | 36D |
| 14DD | 36DD |
| 14E | 36DDD |
| 16A | 38A |
| 16B | 38B |
| 16C | 38C |
| 16D | 38D |
| 16DD | 38DD |
| 16E | 38DDD |
| 18A | 40A |
| 18B | 40B |
| 18C | 40C |
| 18D | 40D |
| 18DD | 40DD |
| 18E | 40DDD |
| 20A | 42A |
| 20B | 42B |
| 20C | 42C |
| 20D | 42D |
| 20DD | 42DD |
| 20E | 42DDD |
Frequently Asked Questions
- What is AU women's bras size 12B in US?
- AU women's bras size 12B is equivalent to US size 34B.
- Is AU size 12B the same as US size 34B?
- Yes, AU size 12B and US size 34B are equivalent in women's bras sizing. However, fit may vary slightly between brands.
- What if AU size 12B is too small — what's the next size up in US?
- The next size up from AU 12B is AU 12C, which converts to US 34C.