knowhersize

Reviewed

34C vs 36C

36C is bigger than 34C. The cup letter is the same, but cup volume grows with the band, so 36C's cups hold more as well as having the longer band.

Side by side

34C36C
RelationshipSame cup letter, different band
UK34C36C
AU12C14C
EU75C80C
FR90C95C
Underbust34–35 in36–37 in
Bust≈ 37 in≈ 39 in
Cup volume36C holds more

On the size chart

34C is marked in ink and 36C is outlined. The yellow diagonal through 34C shows every size with the same cup volume.

34C = UK 34C · AU 12C · EU 75C · FR 90C. Sister sizes: 32D, 36B. 34C in full →
A
B
C
D
DD
DDD
G
H
28
30
32
34
36
38
40
42
44

Questions

Is 34C or 36C bigger?

36C is bigger than 34C. The cup letter is the same, but cup volume grows with the band, so 36C's cups hold more as well as having the longer band.

Can I wear 36C if I'm a 34C?

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

What are 34C and 36C in UK sizes?

34C is UK 34C and 36C is UK 36C. In Europe they are 75C and 80C.