I'm sure no one else cares about this, no one has to bother reading this if it is hurting your brain

And just a reminder that I'm not trying to be argumentative or anything, just engaging in a little friendly debate here, & because I am 100% sure that I am right on this one...
To recap what you (Island Guy) have said so far:
As far as understanding goes, yep, I understand.
the number is the measurement around the ribcage under the breasts in inches plus 5 (I have no idea why they add 5)
The letter tells you the cup size, but it depends on the number.
In your example (30H) that would be the same cup size as a 32G or a 34F or a 36E
Now, from what I understand, doubling the letter is the same as going to the next letter, ie a 36DD is the same as a 36E (I'm not 100% on that part, but I am pretty sure)
So, you'd be a 36E which would be a 36DD as far as cup-size, not 36DDD.
Sorry but almost none of this is true! As I said before,
the "cup size" is a letter representing the difference in inches between the ribcage measurement & the measurement around the bust. A C cup is always a C cup & is always a C cup, & is not, as you said "the same cup size as" anything else. The letter
IS the cup size. It cannot be "the same cup size" as anything but itself. You cannot just deduct the number & add to the letter, it doesn't work that way. Even if you meant to say the same BRA size (& not "cup size"), it is still not true. A woman who is a 30H cannot be or wear any bra size or cup size other than that size, nor can a woman who is a 34C or any other size (unless of course they're different manufacturers & fit slightly differently, or she wears a bra one &
only one size to small & it's a bit tight on her). I did say that it is possible that they are the same size in volume, but apparently this is not what you meant...
Here's the little table from the link above:
32" band: 6" = A cup; 6 1/2" = Full A
32" band: 7" = B cup; 7 1/2" = Full B
32" band: 8" = C cup; 8 1/2" = Full C
32" band: 9" = D cup; 9 1/2" = Full D
34" band: 6 1/2" = A cup; 7" = Full A
34" band: 7 1/2" = B cup; 8" = Full B
34" band: 8 1/2" = C cup; 9" = Full C
34" band: 9 1/2" = D cup; 10" = Full D
36" band: 7" = A cup; 7 1/2" = Full A
36" band: 8" = B cup; 8 1/2" = Full B
36" band: 9" = C cup; 9 1/2" = Full C
36" band: 10" = D cup; 10 1/2" = Full D
38" band: 9 1/2" = C cup
38" band: 10 1/2" = D cup
Since the 2nd measurement is actually the size of the breast itself in inches, you can see that as I said earlier, as the strap size goes up, the cup size goes down for the same size breast.
Yes I did see this chart but it does
not support your assertions. There seem to be 2 different sets of info out there on this, this site first says the usual standard way of measuring (which contradicts this chart) that, "The number of the difference, rounded up, is your cup size. A cup = 1 inch difference, B cup = 2 inch, C cup = 3 inch, D cup = 4 inch, DD cup = 5 inch and so on." but then goes on to say that some women find the larger sizes are sized a little bit "wrong" so offers this chart as an approximation of what some people think might be more accurate, "Thanks to Ed Pechter, M.D., author of The Right Bra Measurement system, there is a NEW way to measure Cup Size." That is all that chart is. It is saying that if you have bigger breasts you should try a bra with a slightly higher cup size than you are supposed to wear & it might fit better, because many manufacturer's don't make the sizes quite accurate. The middle measurement is not, as you said, "the size of the breast itself in inches", it is simply how many inches difference there is between the circumference of the woman's ribcage & the circumference of the woman's bust. It does not mean that any woman with that same difference in measurements can wear any size of bra that is made for that difference in measurements! Because there are other factors determining one's bra size & cup size. Read the rest of the website! That chart does
not mean that the same woman could wear a 30D, a 32C, a 34B, a 36A! And even if you think that it still means that those are the same "size" breasts on different women, the only thing it means is that women who wear those sizes have
close to (according to your chart) the same difference in inches between their ribcage & their bust, that's all.
I don't know how I can make it any clearer to you!
