Breast sizes larger than D follow the alphabet (E, F, G, H...) and double-letter sizes (DD, E, FF, G, GG, H...), with sizes increasing as the letters progress, meaning DD is the next size up from D, followed by E, then F, and so on, with double letters representing a full cup size increase.
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.
When you go down in the band fit you need to go up in the cup size to keep the cup volume the same. So, a 10DD is a sister size to a 12D. It works the other way when you go up in the band size, from 12 to 14, while going down in the cup to a C. 14C is the other sister size for a 12D.
This is helpful because the range of sizes after DD provides more options, especially if you've been wearing the wrong bra size and need to find a better fit. So, to answer the question: 👉 After DD comes DDD (or F cup), followed by G, H, and so on.
The cup sizes A, B, C and D are the core ones. As you move up through alphabetical order DD would be one size larger than D. This pattern continues until you reach double-letter (like FF) cups which also have a gap of one between them; for instance, E is bigger than DD just like how DD is greater compared to D.
The "3 bra rule" is a guideline recommending you own at least three bras for a simple rotation: one to wear, one to wash, and one to rest (in the drawer), allowing elastic to recover between wears to extend the bra's lifespan and maintain fit. This system prevents wearing the same bra daily, which stretches out the elastic and reduces support, helping bras last longer.
The average pair of DDD breasts weighs between 15 and 23 pounds. To put this into perspective, this is the equivalent of carrying around two small turkeys on your chest every day. . . . . .
Yes, the DDD bra size equivalent is the F cup. A DD cup is an E cup, and a DDD cup is an F cup.
These cup sizes may sound big if you've always thought that the biggest size you could get was a DDD cup, but they really aren't – they are totally normal. Sometimes our US customers are surprised at the bra size we recommend. But it makes a huge difference to how their bra fits and how they feel!
After size D you can either go up to size DD which is the bra size equivalent to size E, size DDD which is equivalent to size F, and size DDDD which is equivalent to size G. Our bra sister size chart above can tell you your sister size all the way to bra size 38I.
10 Signs Your Bra Doesn't Fit – And How to Fix It!
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.
38DD Sister Sizes:
If you're in a 38DD and need more space around the band, try a 40D for a looser fit while maintaining the same cup volume.
Mammary glands are influenced by hormones activated in puberty. Shrinkage (involution) of the milk ducts is the final major change that happens in the breast tissue. The mammary glands slowly start to shrink. This often starts around age 35.
This might sound confusing when you go up through the cup sizes, as double letters usually mean a bigger cup (DD is larger than a D, FF larger than F etc).
The difference is truly in the name… DD or DDD are the US standard; E and F are used more internationally.
Yes, it is likely that losing weight will affect your bra size, but it does not always guarantee a major size change. Chances are that your band size and cup size will be affected by losing weight. However some women have naturally large breasts that will not change very much through losing weight alone.
Breast ptosis is the medical term for drooping breast tissue. The most important thing to know is that it's completely natural to experience some degree of sagging as your breasts change over time.
On average, women lose 2 to 8 pounds after a breast reduction, but smaller breasts can greatly relieve shoulder, back, and neck discomfort. A smaller breast profile can make clothing options more comfortable.
Determining if your breast size is considered large often depends on body proportions and symptoms. Key indicators include: Bra Cup Sizes D and Above: Breast sizes D cup and above are generally considered large. However, this can vary depending on the individual's body frame.
The "two-finger rule" for bra fitting is a quick test to check if your bra band is the right tightness: you should be able to comfortably slide two fingers (stacked or side-by-side) under the band at the back, but not much more, indicating it's snug enough for support without being too tight or riding up; the band should feel supportive and stay level, with straps only providing slight lift, not carrying most of the weight.
It turns out, over half of women polled thought a C cup was the perfect fit. At the same time, close to 26 percent preferred a B cup. Nearly 2 percent said an A cup was their preferred breast proportion. Notably, men also agreed that a C cup was their ideal size.
If you have sensitive skin and larger breasts, going braless will allow your skin to breathe better and can prevent skin irritation. If you stop wearing a bra your skin health in your chest area may improve, especially if you often experience body or back acne.