While band sizes are standard (measured in centimeters), cup grading can vary. Below is how a Korean 65G generally converts to other international systems: Equivalent Size US 30G or 30DDDD Europe (EU) Australia (AUS) Japan (JP) Shopping in Korea for 65G

A "G" cup in the Korean system indicates a significant difference between the underbust and overbust measurements (roughly 22.5–25 cm). 65g cup korean women 1

65g cup korean women 1