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Size guides

UK Bra Sizes

Every United Kingdom bra size, one page each: measurements, whether it runs big or small, sister sizes, and the same size in every other system.

UK bands match US; UK cups run A, B, C, D, DD, E, F, FF, G, GG, H. Sizes through DD are identical to US and open the shared page.

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Other systems

Browse by sizing system

Shop itAt HauteFlair, our sister retailer

Opens HauteFlair’s own hub page; use your measured size there. HauteFlair is owned by the same company as Brasize.ai; that relationship never changes the sizing math, charts, or fit advice on this page. How this site makes money.

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Two measurements give you an exact size, then read its page.

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