What Do the Letters Mean in Bra Size?

What do the letters mean in bra size? It’s a question that many women have, but don’t always know how to find the answer. Luckily, we’re here to help. In this blog post, we’ll explain what the letters in bra size mean and how they can affect your fit.

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Most women know their basic bra size (for example, 34B), but many are confused by the letters that sometimes accompany the numbers.What do these letters mean, and why are they important?

The letters in bra size stand for the following:

– band size (the circumference of the chest)
– cup size (the volume of the breasts)

Theband size is represented by a number, and the cup size is represented by a letter. The most common letter sizes are A, B, C, and D. However, some brands also use AA, DD, and even E sizes.

It’s important to know your exact bra size because it ensures that you’re getting a bra that offers both the right level of support and a comfortable fit. Wearing a bra that doesn’t fit properly can lead to a number of problems, such as back pain, shoulder pain, and even headaches. Additionally, wearing a ill-fitting bra can cause the breasts to sag over time.

If you’re not sure what your bra size is, it’s best to get fitted by a professional. Many lingerie stores offer this service for free. Once you know your size, you can start shopping for bras that will offer both a comfortable fit and the level of support you need.

What do the letters in bra size mean?

The letters in bra size stand for the measurement around the chest at its fullest point and the measurement around the body below the breasts. The most common sizes are 32A, 34B, 36C, 38D, 40DD. There are a few other sizes as well, but those are the most common.

The letter “A”

The letter “A” in a bra size stands for “augmented.” An augmented bra is one that has padding or other shaping features built in, as opposed to simply being a thin piece of fabric covering the breasts. This is in contrast to the letter “U,” which stands for “unpadded.”

The letter “B”

The letter “B” in a bra size stands for “Bust.” The number that follows the letter is an indication of the band size. For example, if a bra size is listed as “34B,” this means that the bust size is 34 inches and the band size is 38 inches.

The letter “C”

The letter “C” in a bra size stands for “cup size.” The cup size is the volume of the breast, and corresponds to the difference in inches between the bust line and under bust line. For example, if your bust line is 34 inches and your under bust line is 28 inches, the difference is 6 inches. Therefore, your cup size would be a “C.”

The letter “D”

The letter “D” in a bra size stands for “double.” A double-D bra size is equivalent to a 42 band size. In other words, it’s a very large bra size.


Now that you know what the letters in bra size mean, you can go out and find the perfect fitting bra for your unique body. Keep in mind that there is no perfect size, and what matters most is how the bra feels on your body. If it’s comfortable and gives you the support you need, then it’s the right size for you!