AU to UK bra size
The short answer
By the formula, AU 12G is UK 34FF. On brand charts the most common answer is 34G (6 of 6 brands).
The formula and the brands' most common answer differ on 4 of 12 sizes below. Use the brand's own number for the brand you are buying.
| AU | UK by formula | Most brands print | Other answers in print |
|---|---|---|---|
| 12A | 34A | 34A (5 of 5) | not published |
| 12B | 34B | 34B (6 of 6) | not published |
| 12C | 34C | 34C (6 of 6) | not published |
| 12D | 34D | 34D (7 of 7) | not published |
| 12DD | 34DD | 34DD (7 of 7) | not published |
| 12E | 34E | 34E (7 of 7) | not published |
| 12F | 34F | 34F (7 of 7) | not published |
| 12G | 34FF | 34G (6 of 6) | not published |
| 12H | 34G | 34H (5 of 5) | not published |
| 12I | 34GG | not published | not published |
| 12J | 34H | 34J (4 of 4) | not published |
| 12K | 34HH | 34K (3 of 3) | not published |