What is the bra size 30D? If your bra size is 30D, this means your band size is "30" and your cup size is "D".Read more...
Some 30D women want to know if this bra size is considered small? Whereas the band size of 30 is considered a small band, the D cup size has the same volume as a 32C or 34B. So, your breast volume is not really small. Another common question asked by 30D bra sized women is this: "What is my sister size?" Every bra size has a set of sister sizes. These are bra sizes where either the band, cup or both are just one size up or down from 30D. For example, a 30D bra size has sister sizes of 28DD and 32C. These bra sizes – 28DD, 30D and 32C – all represent bra sizes with the same cup size (when you go up a band size, you need to go down a cup size to maintain your cup volume) but different band sizes. A 28DD will have a smaller band than a 30D, and a 32C will have a larger band than a 30D. If a 30D bra size fits you, this generally means your under your bust measurement is 25 to 26 inches and your over bust measurement at its fullest point is 33 to 34 inches.
Note about the sister cup size 28DD: The cup size DD can also be called an E cup size in European brands, so a 28DD in U.S. sizing would be a 28E in Chantelle and Prima Donna bras. This can be confusing for women when trying to find their 28DD cup size in a European brand. But, problem solved! HerRoom has the solution with our exclusive Universal Cup sizing™ (UCS®). Cup sizes DD and E combined are equal to a UCS® D2 cup size. So, all you need to do is search286D2 at HerRoom and you'll find all the bras, swimwear, shapewear and more that come in your size.
Bra size 30D is 65F in Europe and Japan, 80D in France, and 8D in Australia.
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