I am a 38 D and I am supposed to get 400cc implants. What cup size will I be after? (Photo)

There are too many variations between bra manufacturers to make this question relevant or useful. That said, without examining you in person, your photo and treatment plan suggest you will almost certainly be either a DD or even potentially DDD when all is said and done. Do your research, and make sure that your own aesthetics aligns with that of your surgeon. When in doubt, consider a second opinion. Be aware that at 5'0" tall and 170 pounds, the danger of being over augmented is that it can leave the visual impression of a "bigger gal" overall, so that is something you definitely want to take into account as you think about moving forward with your surgical plans. Best of luck to you. 

 I generally recommend patients not focus on cup size , but rather how full you want your breasts to look. Cup sizes are relative, and the same cup size can look very different depending on much breast tissue is present. It is important that you communicate to your surgeon what you desire your breasts to look like, and trust them to select the appropriate implant.

At size 38 D each 200
cc of implant corresponds to 1 cup size change. 
400 cc implants would take you to a DDD, weigh over 1 lb each, will stretch
your skin and descend inferiorly and laterally. 
Implants are not lifetime devices and you will need a revision.  I suggest you consider a smaller implant and
possibly a lift.  Most women refuse lifts
because of the vertical scars.  The
technique I recommend is The Bellesoma Method. 
This technique will reshape your breast tissue creating upper pole
fullness without implants, elevate them higher on the chest wall and more
medial to increase your cleavage. 
Vertical scars are avoided, nipple sensation and the ability to breast
feed are maintained.  At the same time or
later, fat transfers or small implants can be performed if additional volume is
desired.  Best Wishes,Gary Horndeski, M.D.

Patients often think in terms of cup size when considering augmentation. Unfortunately, devices are sized in terms of milliliters (cc) of volume. This can lead to some confusion when sizing. Additionally, it is important to remember that cup size itself is not standardized with variations from one manufacturer to another. Unfortunately, as many women can attest their cup size in an industry leader such as VS is not necessarily transferable to another brand.
Another point which is often under appreciated is that of anatomy and starting point. Any implant will add volume to the volume which is already present. The implant is additive. A particular volume will not necessarily confer the same cup size to different patients (often times it will not even confer the same cup size to different breasts in the same individual...remember they are "sisters" not "twins"). 
A general rule of thumb is that 125cc can represent somewhere between 1/2 to a full cup size increase. Smaller volume differentials (25-50cc) are typically less consequential representing a volume change of less than a shot glass. However, I have found these numbers, at least anecdotally, to be of little help. Patients often present with notions/goals which do not correlate with these sorts of sterile volumetric assessments.
When sizing patients, there are a number of useful tools including:
-3D imaging (has the added benefit of offering a volumetric analysis of the pre-operative breast)
-Breast sizers (rice bags)
-Goal photos
I also recommend that patients commit to a particular look rather than a cup size. Once a patient settles on a look that pleases them the overall cup size increase becomes less relevant.The key to obtaining a natural result is to stay within the parameters defined by your BWD. This will ensure that you avoid the dreaded "fake" look.
With regards to your specific question, it is difficult if not impossible to accurately predict bra size. Thus, patients should love the "look" and not the "cup."
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.   The size, profile, and shape of the
implant is based on your desired breast size/shape, your chest wall
measurements, and soft tissue quality.  This decision should
be based on a detailed discussion with equal input from both you
and your surgeon.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

Dear sarahann101,Implant profile is a very important consideration. Many patients wrongly assume that the higher the profile the better. The truth is, the more profile (or projection/height) and implant has, the narrower its base has to become. This has several problematic consequences. The first is that the patient loses width and therefor cleavage of the breast. The second is the breast becomes more narrow and pendulous, often falling lateral and onto the side of the chest, and third, high profile implants have a higher risk of bottoming out because they exert more pressure on the inframammary fold than moderate profile implants. High profile implants do have a role in symmastia repair (when I need to narrow the basewidth) but otherwise I try to avoid them.Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Hi -
Cup size varies from person to person and product line sizes.  A 400 cc implant on a larger person might only get them in a small B size yet on a person with a smaller rib cage it would make them look  much larger - even a D.  Your physician likely chose your implant type based on a number  of measurements they did during your consultation. I also always recommend a  patient bring in a picture of someone who looks similar to them who had augmentation to make sure we are thinking about things similarly. 
All the best with your surgery! - Dr. Bekanich

Without seeing you in person, it is difficult to determine what might be the appropriate size implant for you. Implant volumes do not necessarily match up to cup size.

The best cosmetic result in any particular breast augmentation patient depends on a variety of factors, including: Your individual anatomy, desired outcome, realistic expectations, a thorough discussion with the plastic surgeon about the options, and an understanding of the pros and cons of any particular implant choice. Proper sizing is not just about the number of cc’s. The thickness of your tissue, breast dimensions which include the width, height, and projection, as well as chest wall width all need to be considered when choosing an implant. Trying on implant “sizers” of various shapes and volumes while wearing a tight t-shirt, bra, or bathing sit at a preoperative visit will help you and your surgeon choose the optimal implant. 

There are no manufacturers' standards for cup sizing in the bra industry. The cups of a 38 DD+  and a 42DD+ are significantly different. Cup size varies from manufacturer to manufacturer and even within styles from any particular manufacturer. Nor is there a direct correlation between implant shape or size and cup size.

Keep in mind that following the advice from a surgeon on this or any other website who proposes to tell you exactly what to do without examining you, physically feeling the tissue, assessing your desired outcome, taking a full medical history, and discussing the pros and cons of each operative procedure would not be in your best interest. I would suggest that your plastic surgeon be certified by the American Board of Plastic Surgery and ideally a member of the American Society for Aesthetic Plastic Surgery (ASAPS) that you trust and are comfortable with. You should discuss your concerns with that surgeon in person.

Robert Singer, MD FACS

La Jolla, California

The bra manufacturers differ so much in sizing, that it is impossible to predict what size bra will fit you correctly after the surgery.  You might be a DD in a Victoria's Secret and a C cup in a Bali.  It is better to pick a size based on the "look" that you are trying to obtain after the procedure.  The bra size real doesn't matter, as long as you are happy with the final result.  Having said that, a good rule of thumb is for every 200 cc increase in implant volume, your cup size will increase one size.  So, a 400 cc implant should increase your cup size by two.Good Luck!