UK Size 42B in AU — Women's Bras
UK 42B =
AU 20B
United Kingdom (UK) women's bras size 42B converts to Australian (AU) size 20B. 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 20B 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 (UK 42A) is AU 20A, and one size up (UK 42C) is AU 20C. 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 Kingdom-sized products from brands like Bravissimo or Marks & Spencer to ship internationally.
Quick Converter
UK 42B =
AU 20B
Full UK to AU Women's Bras Size Chart
| UK | AU |
|---|---|
| 30A | 8A |
| 30B | 8B |
| 30C | 8C |
| 30D | 8D |
| 30DD | 8DD |
| 32A | 10A |
| 32B | 10B |
| 32C | 10C |
| 32D | 10D |
| 32DD | 10DD |
| 32E | 10E |
| 34A | 12A |
| 34B | 12B |
| 34C | 12C |
| 34D | 12D |
| 34DD | 12DD |
| 34E | 12E |
| 36A | 14A |
| 36B | 14B |
| 36C | 14C |
| 36D | 14D |
| 36DD | 14DD |
| 36E | 14E |
| 38A | 16A |
| 38B | 16B |
| 38C | 16C |
| 38D | 16D |
| 38DD | 16DD |
| 38E | 16E |
| 40A | 18A |
| 40B | 18B |
| 40C | 18C |
| 40D | 18D |
| 40DD | 18DD |
| 40E | 18E |
| 42A | 20A |
| 42B | 20B |
| 42C | 20C |
| 42D | 20D |
| 42DD | 20DD |
| 42E | 20E |
Frequently Asked Questions
- What is UK women's bras size 42B in AU?
- UK women's bras size 42B is equivalent to AU size 20B.
- Is UK size 42B the same as AU size 20B?
- Yes, UK size 42B and AU size 20B are equivalent in women's bras sizing. However, fit may vary slightly between brands.
- What if UK size 42B is too small — what's the next size up in AU?
- The next size up from UK 42B is UK 42C, which converts to AU 20C.