Reviewed
28B bra size
A 28B has a 28-inch band and a B cup, about 2 inches between band and bust. In the UK it is 28B, in Australia 6B and in Europe 60B.
- US
- 28B
- UK
- 28B
- AU
- 6B
- EU
- 60B
- FR
- 75B
Also fits (sister sizes): 30A looser band · all same-volume sizes ↓
28B measurements
- Snug underbust
- 28–29 in · 71–74 cm
- Bust, fullest part
- about 30 in · 75–77 cm
- Cup difference
- 2 in (B 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.
28B sister sizes
Same cup volume, different band. If a 28B 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 28B doesn't fit
Not sure what's wrong? Run through the 4-point fit check.
28B questions
What is the sister size of 28B?
30A (one band up, one cup down). Sister sizes hold the same cup volume on a different band.
What is 28B in UK, Australian and European sizes?
UK 28B, Australia 6B, Europe 60B and France 75B. US and UK cup letters match up to DD and then split.
What measurements are a 28B?
A snug underbust of about 28–29 in (71–74 cm) and a bust of about 30 in (75–77 cm). Measure with the tape level and use the calculator for an exact result.
Is 28B a big size?
28B has a small cup volume for a 28 band. Cup letters only mean something next to the band: a 28B holds the same as 30A or 32AA.