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