What cup size will my girlfriend end up being?

My partner just had a breast augmentation. She wanted bigger breasts and went from 450cc's to 520cc's. She is 36" in the chest, 5'3" tall and a size 12 (curvy). What cup size will she be? I love my girlfriend dearly and didn't want her to go through with the surgery, but she insisted. She wants to be a F or G cup.

Answers from doctors (10)


Barry J. Kaplan, D.O.

Published on May 31, 2016

200 cc's will increase 1 cup size in this range.

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Answered by Barry J. Kaplan, D.O.

200 cc's will increase 1 cup size in this range.

Published on Jul 11, 2012


Jed Horowitz, M.D., F.A.C.S.

Published on May 17, 2016

It's important to know what size bra you currently wear. Is it a 32, 34, 36 bra? What is your cup size? The strap size is important to know because that affects the diameter of the cup and the diameter of the breast implant that we choose. We also need to know your height, your weight, and it's helpful to know your dress size as well.

In addition, it would be very helpful if you include photos of yourself. A front view, a side view, and a three-quarter view are most helpful. This will let us see if there are any breast asymmetries, if the breasts are narrow, if the breasts are wide, what your chest wall looks like, and this will also help us make a decision as to the best size breast implant for you.

In my experience, in general, if a woman wears a size 36 AB bra and would like to be a C cup, which is the average size that women wear and the average size bra that is sold, she needs a volume of approximately 350 to 390 cc to make that change. This becomes less if she's wearing a 34 bra, because it has a smaller strap size and the cups have a smaller diameter. A smaller diameter implant would then be a volume of approximately 300 to 350 cc. In the same way, if she was more petite, maybe a double zero or size one and wore a 32 AB bra, then to become a 32C cup, she would only require about 250 to 300 cc.

This is a general number and, of course, there are other factors that will affect this. For example, if she has a chest wall issue where the chest is slightly sunken--this is called a pectus deformity--then she would require a little bit more volume to first bring her chest to a level position and then move forward to the projection of a C cup. This may require implants of about 50cc more. It's important to examine the patient and have complete information to make this decision.

Breast implant size:

1. 32A to 32C needs about 250-275 cc
2. 34A to 34C needs about 300-350 cc
3. 36A to 36C needs about 350-400 cc

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Answered by Jed Horowitz, M.D., F.A.C.S.

It's important to know what size bra you currently wear. Is it a 32, 34, 36 bra? What is your cup size? The strap size is important to know because that affects the diameter of the cup and the diameter of the breast implant that we choose. We also need to know your height, your weight, and it's helpful to know your dress size as well.

In addition, it would be very helpful if you include photos of yourself. A front view, a side view, and a three-quarter view are most helpful. This will let us see if there are any breast asymmetries, if the breasts are narrow, if the breasts are wide, what your chest wall looks like, and this will also help us make a decision as to the best size breast implant for you.

In my experience, in general, if a woman wears a size 36 AB bra and would like to be a C cup, which is the average size that women wear and the average size bra that is sold, she needs a volume of approximately 350 to 390 cc to make that change. This becomes less if she's wearing a 34 bra, because it has a smaller strap size and the cups have a smaller diameter. A smaller diameter implant would then be a volume of approximately 300 to 350 cc. In the same way, if she was more petite, maybe a double zero or size one and wore a 32 AB bra, then to become a 32C cup, she would only require about 250 to 300 cc.

This is a general number and, of course, there are other factors that will affect this. For example, if she has a chest wall issue where the chest is slightly sunken--this is called a pectus deformity--then she would require a little bit more volume to first bring her chest to a level position and then move forward to the projection of a C cup. This may require implants of about 50cc more. It's important to examine the patient and have complete information to make this decision.

Breast implant size:

1. 32A to 32C needs about 250-275 cc
2. 34A to 34C needs about 300-350 cc
3. 36A to 36C needs about 350-400 cc

Published on Jul 11, 2012


The number of cc's does not dictate cup size. The reason is that you have to consider a woman's natural breast size, plus the implant. So, for example, if you took a woman with an A cup and put in that implant, she would be a lot smaller than someone who is a D cup and gets that implant.

Either way, forget about her cup size. It means nothing. There is no standard cup size measurement between manufacturers. What matters is what fits her breasts: too large and they will look stuffed; too small and they will look empty. Find a surgeon who knows how to properly measure her, has implants for her to try on in a bra, and a Vectra 3D simulator so she can see what she will look like.

In my opinion, she should not go up to a F or G cup. Implants of this size cause neck, back and should pain. Also, the weight of the implants causes sagging within a few years and leads to the breast skin becoming thin. Then, to correct the damage that has been caused, she will require additional surgeries, which can lead to significant scarring. Having implants this large would really only be acceptable if she wants "novelty breasts" for a career in adult entertainment or something similar. In this case, irrevocably damaging the breast tissue and needing other operations in the future might be worth the risk.

Answered by Steven Teitelbaum, M.D.. F.A.C.S (View Profile)

The number of cc's does not dictate cup size. The reason is that you have to consider a woman's natural breast size, plus the implant. So, for example, if you took a woman with an A cup and put in that implant, she would be a lot smaller than someone who is a D cup and gets that implant.

Either way, forget about her cup size. It means nothing. There is no standard cup size measurement between manufacturers. What matters is what fits her breasts: too large and they will look stuffed; too small and they will look empty. Find a surgeon who knows how to properly measure her, has implants for her to try on in a bra, and a Vectra 3D simulator so she can see what she will look like.

In my opinion, she should not go up to a F or G cup. Implants of this size cause neck, back and should pain. Also, the weight of the implants causes sagging within a few years and leads to the breast skin becoming thin. Then, to correct the damage that has been caused, she will require additional surgeries, which can lead to significant scarring. Having implants this large would really only be acceptable if she wants "novelty breasts" for a career in adult entertainment or something similar. In this case, irrevocably damaging the breast tissue and needing other operations in the future might be worth the risk.

Published on Jul 11, 2012


Edward Domanskis M.D.

Published on May 11, 2016

Every about 120-150cc is one cup size!

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Answered by Edward Domanskis M.D.

Every about 120-150cc is one cup size!

Published on Jul 11, 2012


More About Doctor Paul Vitenas Jr., MD

Published on May 11, 2016

Thank you for your question. Generally, it takes about 200-220 ccs to make one full cup size. Determining what size she will be is difficult, since there isn’t an international standard on bra cup size. When a patient is wanting to go with larger implants, it is important to make sure the implant fits correctly on the chest wall of the patient, so they do not end up with neck, back, and shoulder pain. Since her bra size preoperatively is unknown, there isn’t a clear answer on what size she will be.

Answered by Paul Vitenas Jr., MD (View Profile)

Thank you for your question. Generally, it takes about 200-220 ccs to make one full cup size. Determining what size she will be is difficult, since there isn’t an international standard on bra cup size. When a patient is wanting to go with larger implants, it is important to make sure the implant fits correctly on the chest wall of the patient, so they do not end up with neck, back, and shoulder pain. Since her bra size preoperatively is unknown, there isn’t a clear answer on what size she will be.

Published on Jul 11, 2012


ELLIOT B. DUBOYS, MD, FACS

Published on May 10, 2016

One cannot predict cup size because everything depends upon the body shape and what she is starting out with. You also don't mention her weight.

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Answered by ELLIOT B. DUBOYS, MD, FACS

One cannot predict cup size because everything depends upon the body shape and what she is starting out with. You also don't mention her weight.

Published on Jul 11, 2012


More About Doctor Tom Pousti, M.D.

Published on May 05, 2016

Thank you for the question. It is not possible to know what her cup size will be. It will take months for things to heal and settle and see the final outcome. Best wishes for an outcome your girlfriend will be happy with.

Answered by Tom Pousti, M.D. (View Profile)

Thank you for the question. It is not possible to know what her cup size will be. It will take months for things to heal and settle and see the final outcome. Best wishes for an outcome your girlfriend will be happy with.

Published on Jul 11, 2012


Kathleen Waldorf M.D, FACS

Published on May 05, 2016

Bra cup size can be a very ambiguous way of measuring the breast. Every bra manufacturer is different, and therefore each bra size can be different. I would encourage you both to go to the consultation with the plastic surgeon and discuss her desires for breast augmentation and what is right for her body shape and size. Best of luck!

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Answered by Kathleen Waldorf M.D, FACS

Bra cup size can be a very ambiguous way of measuring the breast. Every bra manufacturer is different, and therefore each bra size can be different. I would encourage you both to go to the consultation with the plastic surgeon and discuss her desires for breast augmentation and what is right for her body shape and size. Best of luck!

Published on Jul 11, 2012


Kenneth L. Stein M.D. FACS

Published on May 04, 2016

This all depends on what amount of breast tissue she had and also how long ago she had surgery. Chances are they still need to settle. You will see a change over time. I cannot tell you about bra size as all bras are different. But I can say she will be larger.

Has she discussed her expectation with her surgeon? Did she show him a photograph and did he say that it was possible? It is important to go for follow-up appointments to discuss her concerns. It is early in the healing process.

//imgs-origin.edoctors.com/imageresizer/image/user_uploads/58x58_85-1/doctors/7741_1455309146.jpg
Answered by Kenneth L. Stein M.D. FACS

This all depends on what amount of breast tissue she had and also how long ago she had surgery. Chances are they still need to settle. You will see a change over time. I cannot tell you about bra size as all bras are different. But I can say she will be larger.

Has she discussed her expectation with her surgeon? Did she show him a photograph and did he say that it was possible? It is important to go for follow-up appointments to discuss her concerns. It is early in the healing process.

Published on Jul 11, 2012


Sean Kelishadi, M.D.

Published on May 03, 2016

Different companies size their bras differently. Also, not everyone gets correctly measured for their bras. In reality, it is best to wait 3 months after surgery, when most of the swelling is resolved, to get accurately sized for bras. In general, 150cc's will add close to a cup size in most people. Therefore, the volume she went up will make her a fuller cup than what she currently is.

//imgs-origin.edoctors.com/imageresizer/image/user_uploads/58x58_85-1/doctors/7790_1458147417.jpg
Answered by Sean Kelishadi, M.D.

Different companies size their bras differently. Also, not everyone gets correctly measured for their bras. In reality, it is best to wait 3 months after surgery, when most of the swelling is resolved, to get accurately sized for bras. In general, 150cc's will add close to a cup size in most people. Therefore, the volume she went up will make her a fuller cup than what she currently is.

Published on Jul 11, 2012


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