What are the sister sizes of 42C?

40D and 44B — same cup volume, different band.

Is 42C the same in every brand?

No. A 42C can fit differently between brands because of pattern, fabric and cup shape. Use it as a starting point and try a sister size when switching brands.

42C bra size — conversion chart, sister sizes & brands

A 42C bra (US notation) in every regional standard. The same band-and-cup, labelled eight different ways.

US	UK	EU	FR	IT	AU	JP	IN
42C	42C	95C	110C	95C	20C	95C	42C

Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.

Sister sizes of 42C

Sister sizes hold the same cup volume with a different band — the quickest fix when a band feels too tight or too loose.

40D 44B

Not sure you're a 42C? Two measurements, two minutes — free, nothing stored.

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Brands that make C-cup bras

42C FAQ

What is 42C in EU sizing?: 42C (US) is EU 95C. In UK sizing it is 42C. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
What are the sister sizes of 42C?: 40D and 44B — same cup volume, different band.
Is 42C the same in every brand?: No. A 42C can fit differently between brands because of pattern, fabric and cup shape. Use it as a starting point and try a sister size when switching brands.