Daniel C. Mills, MD

It is difficult to say what size implant you would need without seeing how much breast tissue you have currently.  For a average size woman (and you are a bit taller than average), you would need to be about 520 cc total volume for an average C.  If you have 150 cc of your own breast tissue, you would need to get about a 370 cc implant to make a total of 520 cc.  This is an average and also depends on your body shape and size.  You would have to be examined to be clear.  This is also complicated by the fact that bras are not regulated, so what is a B for most companies, Victoria Secret call that same bra a C cup for marketing reasons (women would like to think that their cup size is larger than they are).  You need an physical exam to be sure!