Congratulations on your decision to proceed with breast reduction surgery; it is one of the most patient pleasing operations we perform.
Unfortunately, there is no direct correlation between the amount of tissue removed and the ultimate cup size that a patient will wear after breast reduction surgery.
Before undergoing the breast reduction procedure it is very important that patients communicate their size goals with their surgeon. In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or “C cup” etc. means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup size may also be inaccurate.
Generally, I advise patients undergoing breast reduction surgery to go small enough to alleviate symptoms related to breast hypertrophy as much as possible while retaining as much breast tissue as necessary to maintain proportionality between the upper and lower torso.
Best wishes.