Cherry SizeCalculator › All bra sizes, size by size › 38C
38C bra size — conversions, sister sizes & fit
A 38C fits an underbust of about 83–87 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
38C US
Which measurements give 38C?
| cm | |
|---|---|
| Underbust (snug) | 83–87 |
| Bust (fullest point) | 97–103 |
| 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 38C
36D and 40B hold the same cup volume as 38C with a tighter or looser band. If the band of a 38C rides up, try 36D; if it digs in, try 40B.
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 38C? 383 of the 632 brands in the Cherry Size catalogue are confirmed to carry 38C 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 38C brand by brand38C in questions
What is 38C in European sizing?
A 38C corresponds to 85C in European sizing and 100C in French/Spanish sizing. The cup volume is identical — only the band numbering changes between systems.
Is 38C 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 36D and 40B hold exactly the same volume as 38C.
My 38C doesn't fit — what should I try?
If the band rides up or feels loose, go to 36D. If the band digs in while the cup is fine, go to 40B. 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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