knowhersize

Reviewed

30D vs 32D

32D is bigger than 30D. The cup letter is the same, but cup volume grows with the band, so 32D's cups hold more as well as having the longer band.

Side by side

30D32D
RelationshipSame cup letter, different band
UK30D32D
AU8D10D
EU65D70D
FR80D85D
Underbust30–31 in32–33 in
Bust≈ 34 in≈ 36 in
Cup volume32D holds more

On the size chart

30D is marked in ink and 32D is outlined. The yellow diagonal through 30D shows every size with the same cup volume.

30D = UK 30D · AU 8D · EU 65D · FR 80D. Sister sizes: 28DD, 32C. 30D in full →
A
B
C
D
DD
DDD
G
H
28
30
32
34
36
38
40
42
44

Questions

Is 30D or 32D bigger?

32D is bigger than 30D. The cup letter is the same, but cup volume grows with the band, so 32D's cups hold more as well as having the longer band.

Can I wear 32D if I'm a 30D?

Only if the fit check says so. Changing the band also changes the cup volume, so try both where returns are easy.

What are 30D and 32D in UK sizes?

30D is UK 30D and 32D is UK 32D. In Europe they are 65D and 70D.