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".
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.
There is a vast spectrum of different sizes and shapes. In fact, the Guinness World Record for largest natural breasts belongs to New York native Annie Hawkins-Turner. Her chest-over-nipple measurement is 70 inches!
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.
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.
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.
Understanding “Ideal” Breast Size
Likewise, 49% of men and 52% of women concurred that a C cup is the ideal breast size, which is close to the average breast size of women in both the United States and Europe.
There's a good reason why most people have voted C Cup as the ideal boob size. The C Cup breast size denotes positive factors such as young age, the right estrogen level and high fertility. C Cup essentially signifies the best matrix in terms of mate selection, as perceived by subconscious evolutionary systems.
Bra Cup Sizes
The further down the alphabet a letter is, the larger the cup volume, starting with AA as the smallest.
Australian bra sizes typically range for band sizes from 8 (25-27 inches) to 26 (43-45 inches).
Normal breast tissue often feels nodular (lumpy) and varies in consistency from woman to woman. Even within each individual woman, the texture of breast tissue varies at different times in her menstrual cycle, and from time to time during her life.
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.
According to a study conducted by the researchers at the University of Vienna, smaller breasts are likely to be more sensitive than their bigger counterparts. They are also more likely to get easily aroused for increased pleasure.
While it's really difficult to precisely determine the standard breast size in the U.S. (or anywhere in the world, for that matter), wedo know that the average breast size in America is a 34DD.
The preferred (and ideal) breast shape was in the ratio of 45:55. The best breasts are the ones that have 45 per cent fullness above the nipple and 55 per cent below.
When you look down at your bra do you notice space between your breasts and the cup? If so, it's too big. If you aren't able to see any gaps while standing up, try leaning over while looking into a mirror. If there is extra space in your cups it's time for a new size.
The global rise in the average cup size is due in part to improved welfare and diet, and may also be attributed to hormonal factors. On the other hand, women are becoming more aware of the importance of wearing the right cup size.
In 80s and 90s average size increased to 34D and 34DD
The average woman's breasts have increased from a modest 34B in the 1960s to a voluptuous 36DD today, the same size as curvy.
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.
the average bra size of a 14 year old is 32 B.
Over six out of ten women (60.4%) said that their ideal bust size is a C cup, compared with just over one in two men (53.6%). Overall, this mid-sized cup is popular with both men and women, in both Europe and the US.
But for the average sized women with normal measurements, the C cup implants are between 300-400 cc. The 300 and 325 cc volumes can be thought of as small C cups. The 375 and 400 cc as large C cups. 350 cc might be considered a classic middle C cup implant.