How many cup size or sizes did I go up? Post op breast augmentation. 475cc silicone gel make me a C or D?

From what you have described it appears that the 475cc implants will make you a D cup. Not a C cup. The style and size of  the implant is important and should be based on your breast measurements.I hope this has helped.

Without photos and the  benefit of physical exam- it's difficult to give you the best answer. Also, it's useless to discuss cup size because most all bra manufacturers do not consult with Plastic Surgeons to correlate implant size to cup size. We try to focus on your look and feel and then whatever cup works- it works. Look and feel are most important.