Bra size refers to a combination of numerical and alphabetical measurements that designate the size of a bra. It gives an indication of the size and fit of a bra, aiming to provide support, comfort, and a desired aesthetic appearance. The bra size is typically composed of two main components: Band Size (Number): This is the circumference around the torso, directly under the bust. It provides the primary support for the breasts. The band size is usually denoted by a number, such as 32, 34, 36 ... This guide explains all Bra Sizes, boob sizes & breast cup size comparison side by side from A Cup, B, C, D, DD/E, F, G Cup to HH. Woman’s breast sizes are different, and every woman’s bra cup sizes differs. This calculator estimates bra size based on bust size, frame size, and common measurement standards. Also, convert bra sizes in the US, UK, EU, and Australia. When people talk about breast size, they often describe it in terms of bra size. Pinning down an exact number for what’s “normal” or "average" isn’t as easy as you might think. Read on to ...