Reviewed
28I (UK 28G) bra size
A 28I has a 28-inch band and a I cup, about 9 inches between band and bust. In the UK it is 28G, in Australia 6G and in Europe 60I.
- US
- 28I
- UK
- 28G
- AU
- 6G
- EU
- 60I
- FR
- 75I
Also fits (sister sizes): 30H looser band · all same-volume sizes ↓
28I measurements
- Snug underbust
- 28–29 in · 71–74 cm
- Bust, fullest part
- about 37 in · 93–95 cm
- Cup difference
- 9 in (I 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.
28I sister sizes
Same cup volume, different band. If a 28I 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 28I doesn't fit
Not sure what's wrong? Run through the 4-point fit check.
28I questions
What is the sister size of 28I?
30H (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 28I in UK, Australian and European sizes?
UK 28G, Australia 6G, Europe 60I and France 75I. US and UK cup letters match up to DD and then split.
What measurements are a 28I?
A snug underbust of about 28–29 in (71–74 cm) and a bust of about 37 in (93–95 cm). Measure with the tape level and use the calculator for an exact result.
Is 28I a big size?
28I has a very full cup volume for a 28 band. Cup letters only mean something next to the band: a 28I holds the same as 30H or 32G.