how big is 10 inches like on a computer screen somewhere around 22cm so how many inches would this be |-------------------------------------------| 5? no way um that would depend on your screen resolution if i was using like 480*600 on a 21 inch monitor that would be like 15 inches jim is measuring his man tool in hyphens ok if you were on windows xp how many inches would that be jim what resolution sir LOL xp professional no sir that is not a resolution rofl but it's the newest one rofl thats an os you idiot oh