Reviewed
28J (UK 28GG) bra size
A 28J has a 28-inch band and a J cup, about 10 inches between band and bust. In the UK it is 28GG, in Australia 6GG and in Europe 60J.
- US
- 28J
- UK
- 28GG
- AU
- 6GG
- EU
- 60J
- FR
- 75J
Also fits (sister sizes): 30I looser band · all same-volume sizes ↓
28J measurements
- Snug underbust
- 28–29 in · 71–74 cm
- Bust, fullest part
- about 38 in · 95–98 cm
- Cup difference
- 10 in (J cup)
These are starting points from the band-and-cup method. Brands differ by about a size, so a two-minute measurement beats any chart.
28J sister sizes
Same cup volume, different band. If a 28J band feels too loose, go down a band and up a cup; if it feels tight, go up a band and down a cup.
If a 28J doesn't fit
Not sure what's wrong? Run through the 4-point fit check.
28J questions
What is the sister size of 28J?
30I (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 28J in UK, Australian and European sizes?
UK 28GG, Australia 6GG, Europe 60J and France 75J. US and UK cup letters match up to DD and then split.
What measurements are a 28J?
A snug underbust of about 28–29 in (71–74 cm) and a bust of about 38 in (95–98 cm). Measure with the tape level and use the calculator for an exact result.
Is 28J a big size?
28J has a very full cup volume for a 28 band. Cup letters only mean something next to the band: a 28J holds the same as 30I or 32H.