knowhersize

Reviewed

28C bra size

A 28C has a 28-inch band and a C cup, about 3 inches between band and bust. In the UK it is 28C, in Australia 6C and in Europe 60C.

US
28C
UK
28C
AU
6C
EU
60C
FR
75C

Also fits (sister sizes): 30B looser band · all same-volume sizes ↓

28C measurements

Snug underbust
28–29 in · 71–74 cm
Bust, fullest part
about 31 in · 77–80 cm
Cup difference
3 in (C 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.

28C sister sizes

Same cup volume, different band. If a 28C band feels too loose, go down a band and up a cup; if it feels tight, go up a band and down a cup.

28C = UK 28C · AU 6C · EU 60C · FR 75C. Sister sizes: 30B. 28C in full →
A
B
C
D
DD
DDD
G
H
28
30
32
34
36
38
40
42
44
28C30B32A34AA

If a 28C doesn't fit

Band digs in, cups fit
Try 30B
Spilling over the cups
Try 28D
Cups gape or wrinkle
Try 28B

Not sure what's wrong? Run through the 4-point fit check.

Sizes next to 28C

28C questions

What is the sister size of 28C?

30B (one band up, one cup down). Sister sizes hold the same cup volume on a different band.

What is 28C in UK, Australian and European sizes?

UK 28C, Australia 6C, Europe 60C and France 75C. US and UK cup letters match up to DD and then split.

What measurements are a 28C?

A snug underbust of about 28–29 in (71–74 cm) and a bust of about 31 in (77–80 cm). Measure with the tape level and use the calculator for an exact result.

Is 28C a big size?

28C has a mid-range cup volume for a 28 band. Cup letters only mean something next to the band: a 28C holds the same as 30B or 32A.