To break it down — a 38 would mean that her raw under bust measurement would be around the 38 inch mark. Not even mine is that, and I can safely say that she is a lot smaller than I am. And DDD? This calculator should help if you are now confused about your own bra and size! And a 30H is the equivalent to a 40DDD in terms of cup volume therefore not making it so hard to fathom.
Bra sizes basically depend on the band sizes and cup sizes of the particular bras, usually consists of numbers and alphabets. In , bra cup sizes were invented and band sizes became popular only in s. All the women differ from each other in shape, size, spacing, position, symmetry and firmness. The bra manufacturers produce bras of limited ranges from smallest to largest targeting to fit the maximum numbers of women.