If I wear a 36B but now that's become a little small, what size would I be in a C if I wanted the band size to be relatively the same but the cup size a bit bigger?
The band size, if your back hasn't gotten broader, will stay the same. Only the cup size will increase if just your breasts got larger. So you'll move onto a 36C.
However, I suggest your drop by Victoria's Secret or another bra fitter that will better help you identify your correct bra and cup size. Bras vary by brand so make sure you find your perfect fit.
the number is the band size. the letter is the cup size. if you want the band size the same, get a 36C :)
36C
You might be able to go down a band size. I would try a 34 C and a 36 C just to be sure.
36 C ;)
You should try 34C. It's relatively the same band size and the band size will give more support to the chest area even if the C is a bit spacial. Try going to a local Victoria's Secret to get measured, it will help alot :D