/cgl/ - Cosplay & EGL

>>9758963
US measuring methods are retarded (not only for bras, see: different systems for male and female footwear).
Usually unberbust +0 or +4 is used for band, with some brands using charts that fall somewhere in between. Some brands eve measure it above the breasts. It's a mess in US. There's no standardization.
For cups, in the Anglosphere the A cup is a difference in 1 inch to band (around 5.5 in to underbust), and goes up in steps of one inch. The naming above D is mess again.

EU, Japan, and Korea abide to strict (inter)national standards.
Band sizes are underbust measurement rounded to 5 cm, simple as that.
Cup sizes differ a little.
EU starts at 11±1 cm for AA cup, and the difference is 2 cm for each size above. No letters are doubled except for initial AA.
Japan and Korea goes in steps of 2.5 cm, AA being 7.5±1.25 cm, Korea additionally has one step lower, AAA at 5 cm, but otherwise no letters are doubled.