Cup sizes typically range from AA (the smallest) to a K (the biggest), and chest sizes range from 28-52 inches.
With standard sizing, you can expect a 32C and a 32D to be bracketed together as a Small, a 34C and a 34D to both be Medium, a 36C and 36D to equate a Large, and so on, up through the fit range.
If C cups are the midpoint or medium breast size indicator on the cup size scale, then D cups mark the transition towards larger breasts and DD cups are the exact opposite of A cups.
When our participants were asked what their ideal breast size would be, the C cup was considered the most popular, with 39% choosing it above other sizes. In second place, was the D cup, which was the first choice of 29% of people who completed our survey.
The B cup is one cup size bigger than the A cup, which means the B cup is an inch bigger in the bust measurement when compared to the A cup.
That number represents your cup size. For less than one inch you are a AA cup, for one inch you are an A cup, for two inches you are a B cup, for three inches you are C cup, for four inches you are a D cup and for five inches you are a DD cup.
Generally, the A cup is considered the smallest available but for some this is still too big and compensating with a smaller band size won't help. If you want something that's going to fit your form you'll have to go down a level to an AA or even AAA cup.
Asian and African nations have the smallest, with predominantly B and A cup sizes being most common. Australia is way down the list: in 2020, the most common Australian bra sizes are reported to be 14C and 12D, and while this is the average across all ages, there really is no such thing as the “average” woman.
Is C Cup Big or Small? Contrary to popular belief, a C cup is not a large size. It is the most common size among women who have breast augmentation or breast implants. Having a larger chest isn't ideal for women since it can affect their posture and cause shoulder and back pain.
Your breasts are unique
The average bra size in the United States is 34DD.
Globally, a natural female breast has an average size somewhere between a large "A" and a smaller "B" in the US size system. According to European or Australian classifications, this would be a "B".
There's no difference in the spacing between single and double letter sizes, a DD is one full size larger than D, just like E is one full size larger than DD.
Generally, a 32C is considered a medium/average size. C cups are very common, while a 32 inch ribcage measurement is on the smaller side.
At Target we have bras in body sizes 8–26.
What is the Smallest Bra Size? The smallest bra size is generally 28AA, but some places (particularly specialist retailers) will produce AAA cups. 28AA means that the bra band is 28 inches and the bust is less than one inch larger than the ribcage.
Yes, Your Girls Need Support
You need to support your A and B cups. Smaller busts do not usually cause back pain but they still bounce with every step you take. And those steps can add up, 10,000 a day! If you don't wear a sports bra, this can make your breasts sag over time.
Average Breast sizes for Teenagers
Age 14: Breast size B. Age 15: Breast size C. Age 16: Breast size C+, at this age girls develops breasts completely that leads to full bra size of adults.
A 32C is one cup size smaller than a 34C. That also means a 34 is two cup sizes bigger than a 30C, and so on.
Sister sizes
For an example, a 32C and a 34B are the same cup size. The only difference is the band size. The 34 is a bigger band size than a 32. Another example, a 34B and 36A are the same cup size.
For some reason, we have been brainwashed into thinking that boob sizes go from A-DD, DD being the biggest boob/bra size. DD is actually at the lower end of the scale, there is still E, F, FF, G, GG, H, HH, J, JJ, and K cup above that.
In the United States cup sizes range from A to N. The cup sizes get larger as the letters go up in the alphabet. Size D is bigger than A, and H is bigger than D. Sizes are as follows: AAA, AA, A, B, C, D, DD, F, G, H, I, J, K, L, M, and N.