What is the average size by country? According to World Data, the average volume of a natural female breast is roughly 327 millilitres - which is about the size of a European B cup.
Your breasts are unique
The average bra size in the United States is 34DD. This figure can vary by country. In the U.K., for example, the average is 36DD.
According to a survey conducted between 1992 and 2013, the average bra size in the U.S. has increased from a 34B to a 34DD, and now just six years later, the average has shot up to a DDD — that's the largest compared to any of the other countries studied.
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.
34B is one of the most popular bra sizes in the country.
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.
Large Sizes
38-50 B and above cup sizes. Women in these sizes have a "plus size" figure and typically wear a women's dress size of 14+.
A study published in The Journal of Female Health Services has reported that Filipino women have the smallest breasts in the world. The breast size data of women born in 108 countries were converted to a “comparable format” and analysed by scientists.
What's the perfect breast shape? Nearly everyone agrees—it's a breast with an “upper pole to lower pole ratio of 45:55,” reports a study in the September issue of Plastic and Reconstructive Surgery®, the official medical journal of the American Society of Plastic Surgeons (ASPS).
The women with the largest breasts are from Russia, Sweden, Norway and Finland, who, on average, have a cup size larger than a D. Women from Africa or living in Asian countries are on the opposite end of the spectrum - the majority with A or B cup sized breasts.
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.
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.
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 there's a 1-inch difference between bust and band you're an A cup; 2-inch difference is a B cup, 3 inches is a C cup, 4 inches is a D cup, and so on. For example, if your bust measurement is 37 inches and your band is 33 inches, you would be a D cup because of the 4-inch difference.
And when it comes to 32B bra size, it is on the small side of average. "B" cup is considerably small than average, and it is considered being small bra size. 32 is the band size which is the measurement around your chest, under the breasts where the band of the bra sits.
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.
Considering that most brands range from A (Smallest) to the letter F (Largest), the C cup is considered average. A C cup bust measures three inches larger than the underbust circumference. The B cup bust measures two inches in larger than the band measurement. The cup volume will differ based on the bra's unique size.
The biggest bra cup size, or the most widely available one, is a K cup, but obviously it's possible to be bigger than this. If you're measuring bigger than a K, it's most likely that you'll have to get your bras made by a specialist place.
Try chest development exercises
However, the right exercises can be very effective for developing the pectoral muscles underneath your breasts, as well as your back and shoulder muscles. This can help your breasts appear larger, higher, and firmer. Some exercises to try include: wall presses.
The smallest bra size is generally 28AA, but some places (particularly specialist retailers) will produce AAA cups.
Genetics: Some men and women are predisposed to having a fuller breast size. This can be inherited from both the mother's and father's side of the family. Hormonal Changes: Women develop their breasts during puberty as estrogen increases.