What are the sister sizes of 44C?

42D — same cup volume, different band.

Is 44C the same in every brand?

No. A 44C 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.

44C bra size — conversion chart, sister sizes & brands

A 44C bra (US notation) in every regional standard. The same band-and-cup, labelled eight different ways.

US	UK	EU	FR	IT	AU	JP	IN
44C	44C	100C	115C	100C	22C	100C	44C

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 44C

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

42D

Not sure you're a 44C? Two measurements, two minutes — free, nothing stored.

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Brands that make C-cup bras

44C FAQ

What is 44C in EU sizing?: 44C (US) is EU 100C. In UK sizing it is 44C. 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 44C?: 42D — same cup volume, different band.
Is 44C the same in every brand?: No. A 44C 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.