Gallery Point Exchange
From EHWiki
Gallery Point (GP) Exchange allows one to convert Gallery Points to credits. This is a one way conversion; you cannot convert credits into Gallery Points.
To access the GP Exchange, first go to E-Hentai Galleries, and then go to "My Home" at the top of the gallery page.
The exchange rate (subject to change) fluctuates around 20-21 GP = 1 Credit (in the past, it was known to be as low as ~5 and as high as ~25)
External link to GP conversion screen
See also: Hath Exchange
