What is the largest implant size a person can get in the United States?

Thank you for your question.  Yes 800 cc as the largest silicon gel implant available.  Saline implants can be filled to larger sizes.  However I have never seen a "beautiful" breast with 1000 to 1200 cc breast implants.  These large sizes stretch the breast to an unnatural appearance, often get hard,  and in my opinion look distorted.

It is very difficult to determine the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 350 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. . Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in the below link.

Thanks for your question.  The only way to get to the sizes that you are looking for in the US is by overfilling saline implants. This will give you a larger breast but come at the cost of a firmer feeling breast.  Also, the more the implants are overfilled, the more round the will become in shape. Overfilling is considered "off label," and may void the manufacturers warranty.  seek out a surgeon who has experience in large volume augmentations.   Bset Regads.