Cherry SizeCalculator › All bra sizes, size by size › 34C
34C bra size — conversions, sister sizes & fit
A 34C fits an underbust of about 73–77 cm with a bust 14–16 cm larger than the band. Here is everything that label actually means — and how to check it really fits you.
Your bra size
34C US
Which measurements give 34C?
| cm | |
|---|---|
| Underbust (snug) | 73–77 |
| Bust (fullest point) | 87–93 |
| Difference (cup volume) | 14–16 |
Between two sizes? Measurements near the edges of these ranges can also fit the neighbouring size — check the sister sizes below and, in doubt, trust the fit checks from our measuring guide.
Sister sizes of 34C
32D and 36B hold the same cup volume as 34C with a tighter or looser band. If the band of a 34C rides up, try 32D; if it digs in, try 36B.
You are in the heart of every brand's range, which means maximum choice and also maximum inconsistency: this is where brands cut most aggressively different from one another. The same label can run a full cup apart between two houses. Lean on the fit checks — band level, wire flat against the sternum, no spill, no gap — rather than the label, and keep both sister sizes in mind at the fitting room.
Who makes 34C? 401 of the 632 brands in the Cherry Size catalogue are confirmed to carry 34C in their standard range. But each of them cuts it differently — the app tells you the exact size to try at every one of them, from your own measurements.
See 34C brand by brand34C in questions
What is 34C in European sizing?
A 34C corresponds to 75C in European sizing and 90C in French/Spanish sizing. The cup volume is identical — only the band numbering changes between systems.
Is 34C big or small?
It sits right in the middle of the size range — the most commonly stocked profile. Cup letters mean nothing alone: a cup only has a volume relative to its band, which is why 32D and 36B hold exactly the same volume as 34C.
My 34C doesn't fit — what should I try?
If the band rides up or feels loose, go to 32D. If the band digs in while the cup is fine, go to 36B. If the cup overflows, try one cup up in the same band; if it wrinkles empty, one cup down. Two minutes with the calculator confirms it.
Nearby sizes
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