Hi there, thank you for your question. It depends on the projection of implant as well but, you can reach to C cup if high projection is used.
There is no way to tell you precisely what bra size you will wear with a given implant. As women are too aware, bra sizing fluctuates by manufacturer. What is important is that you love the way your breasts look when you look in the mirror after you are healed from surgery. Your surgeon is an expert at listening to your surgical goals and combining that with your breast measurements to suggest the best implant for you. Many surgeons have sample implants available you can "try on" to give you an estimate of how you may look after surgery.