Can someone convert the Danbooru breast sizes to their respective cup sizes?

I guess small is from AA to B, medium ranges from C to DD, large is from E to K, huge is from L to ZZ, and gigantic is about ZZZ (yes, that cup size exists IRL, and it's a world record). How do y'all do though?

Breast size tags are based more on relative body proportions than on absolute size. Medium breasts and large breasts can look almost the same depending on which character they're on.

Cup sizes are determined based on the difference between bust circumference and underbust circumference while danbooru sizes are determined on the ratio between the volume of one breast and the volume of a sphere with the same diameter as the character's face, so there's no direct correspondence.

Our current breast size tags are sufficient enough, and are more broad and understandable than the specific breast cup size lettering format.

Jerrcheron said:

Our current breast size tags are sufficient enough, and are more broad and understandable than the specific breast cup size lettering format.

Well you've got a point.