How many CC in one cup? 250CC or 100CC?

In baking 250cc is a cup, but unfortunately it is not as straightforward with breast implants. Cup size is determined by subtracting the measurement around your ribcage (the band size of a bra) from the measurement around your chest at the point where your breasts project the most. Because it's all relative to your band size a person with a small band will require less volume added (smaller implant) to go up in cup size than someone with a larger band. It will also differ wildly between bra manufacturers as there is really no consistency anymore between what a specific cup size really is from one brand to another. One woman may be a double D in one brand and a C in another. A better way to choose your implants is to try on sizers and simply see what you like best, ignoring the specific cup size. Hope that helps!

Congratulations on having undergone the breast augmentation procedure. I do not think that the generalizations of "200 cc equates to 1 cup" hold any validity or are helpful in any specific way.   In other words, there is no accurate/reliable/predictable correlation between size/profile breast implant utilized and cup size achieved.  You will need to exercise patience and be fitted for bras in a few months; do not be surprised if you end up wearing different bra cup sizes depending on the bra manufacturer.
Generally speaking, the best online advice I can give to ladies who are considering breast augmentation surgery in the future ( regarding breast implant size/profile selection) is:
1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.
2. Have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining breast implant size/type/profile will most likely help achieve your goals.
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 or D cup” etc means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup size may also be inaccurate. Again, the use of computer imaging has been very helpful during the communication process, in our practice.
3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually made during surgery, after the use of temporary intraoperative sizers.
I hope this (and the attached link, dedicated to breast augmentation surgery concerns) helps. Best wishes.

Thanks for your question. There is no exact correlation between cup size and implant size.  Your final result will also depend on the amount of your own breast tissue and the type of bra you purchase.  Implants are selected based on looking at before and after photos of patients with a similar body type, trying on sizers, 3D imaging, and input from your surgeon based on your breast anatomy.