This is a decimal number Greater than 0. where one is at full size, .75 is 75%, 1 is normal size, 1.25 is 25% larger. Tested Blizz Value range is between .65 and 1.15 (1 being the same as unscaled) You can go outside that but be careful! In Config.wtf: * SET uiScale "1.0" In Console: * /console uiscale 1.0 Acceptable values * 0.64 up to 8.0 and beyond * Values lower than 1.0 shrink the size interface. Values higher than 1.0 increase the size of the interface. * Values lower than 0.64 have no effect