US Size 40DDD in AU — Women's Bras
US 40DDD =
AU 18E
United States (US) women's bras size 40DDD converts to Australian (AU) size 18E. This is a standard conversion used across most major bras brands and retailers.
When shopping from Australian brands like Berlei, Bonds, Bras N Things, look for size 18E 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 (US 40DD) is AU 18DD, and one size up (US 42A) is AU 20A. 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 Australian retailers or ordering United States-sized products from brands like Victoria's Secret or ThirdLove to ship internationally.
Quick Converter
US 40DDD =
AU 18E
Full US to AU Women's Bras Size Chart
| US | AU |
|---|---|
| 30A | 8A |
| 30B | 8B |
| 30C | 8C |
| 30D | 8D |
| 30DD | 8DD |
| 32A | 10A |
| 32B | 10B |
| 32C | 10C |
| 32D | 10D |
| 32DD | 10DD |
| 32DDD | 10E |
| 34A | 12A |
| 34B | 12B |
| 34C | 12C |
| 34D | 12D |
| 34DD | 12DD |
| 34DDD | 12E |
| 36A | 14A |
| 36B | 14B |
| 36C | 14C |
| 36D | 14D |
| 36DD | 14DD |
| 36DDD | 14E |
| 38A | 16A |
| 38B | 16B |
| 38C | 16C |
| 38D | 16D |
| 38DD | 16DD |
| 38DDD | 16E |
| 40A | 18A |
| 40B | 18B |
| 40C | 18C |
| 40D | 18D |
| 40DD | 18DD |
| 40DDD | 18E |
| 42A | 20A |
| 42B | 20B |
| 42C | 20C |
| 42D | 20D |
| 42DD | 20DD |
| 42DDD | 20E |
Frequently Asked Questions
- What is US women's bras size 40DDD in AU?
- US women's bras size 40DDD is equivalent to AU size 18E.
- Is US size 40DDD the same as AU size 18E?
- Yes, US size 40DDD and AU size 18E are equivalent in women's bras sizing. However, fit may vary slightly between brands.
- What if US size 40DDD is too small — what's the next size up in AU?
- The next size up from US 40DDD is US 42A, which converts to AU 20A.