32A + 100cc = +1 cup size?

This is an overly generalized guideline. It is not possible to accurately predict how 100cc would impact your breast size without knowing more details about your body dimensions.

Thanks for your question! One cup size can be 100-150cc depending on the implant, your body, how you're filling out the cup, the bra, the brand, etc. There are so many factors. I would suggest trying on implants and going with an implant/look that you like. Good luck!

There is no standard bra cup-sizing system. “B cup” can mean one thing if it’s made by Victoria’s Secret and another if it’s made by Vanity Fair. You might need a A cup in a full-coverage bra and a Bcup in a demi bra, even if the same company makes both styles. Your cup size is also affected by how tight you make the band. If you wear it tighter, it will push your breasts deeper into the cup and you’ll need a bigger cup size. What looks proportional varies from person to person. Think of “proportional” as a “B look” rather than a “B cup.” To achieve the B look, a 5-foot woman with a small frame might only need a A cup while a 5-foot-8-inch woman with a large frame might need a C cup. Dr. Ted Eisenberg, Board Certified Plastic Surgeon and Author. RealSelf Distinguished Hall of Fame Inductee. Philadelphia, Pa., USA

Dear a.swede.with.questions,
it is hard to calculate cup size based only on implant size. Breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient. When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Usually about 150 cc's is needed to increase cup sizes from A to C-D. Past DD, the cup increase may need to be closer to 200 cc's.

Cup sizes are not exact. When selecting the right implant for you it's important to begin by having a consultation with a board certified plastic surgeon. During this important meeting your surgeon will take measurements of your breasts (this is different than bra size) and discuss your surgical goals. Together you can select the implant that's right for you. I've included a video that I hope you find helpful.

These numbers are an approximation. For smaller chests, 30, 32, 34, every 100 to 125cc is about 1 cup size increase. Larger chest measurements, 34, 36 or 38, see less change with the increase in volume. Therefore, 150cc increase will provide about one cup size increase. This however is an approximation.
The best thing to do is find a Plastic Surgeon in your area who uses Vercta 3D Imaging. This will show you exactly the volume of your breasts with any size implant you would like to see.
Good Luck

Cup size is highly subjective and an inaccurate way of describing breast size.
I suggest working with pictures to communicate desired breast outcome.
Best,
Mats Hagstrom, MD