What is the Diameter of a cd?

[Redwingsguy]

Well I just found a great site link for cd covers. And i'm uhhh...repairing my scratched cd covers on cds I own....

Well I measured it and got 4.55inch but those came up small

 

[Auric]

12 centimeters (8 for the leetle ones). Unfortunately they are commonly and erroneously called 5 inches (3 for the itsy ones) in the Americas.

 

[MrHelpful]

Yup. You can use them as a template for 120mm blowholes.