How to measure case fan size?

[fedekerplunk]

ok I'm with this trouble, I already sized it with meters, centimeters, rules, and ultil with measuring tape!!!, and the size goes on being the same (69cm= 27,16 inches), so I know it's an impossible size to a fan case, because the sizes start about to 80mm (8cm), help please if I'm forgiving to do something

 

[jimmysmitty]

Its the width and height from corner to corner. All 4 sides will be , for example a 120MM fan, 120mm.

 

[electro_neanderthal]

You measure via the circular diameter (don't include the bolt holes, you measure the fan chamber across). I've never heard of a case fan that large across, but applying Pi to that number... 220mm fan?

 

[fedekerplunk]

Its the width and height from corner to corner. All 4 sides will be , for example a 120MM fan, 120mm.

do I have to take the sizes with heatsink included?

 

[electro_neanderthal]

Its the width and height from corner to corner. All 4 sides will be , for example a 120MM fan, 120mm.

do I have to take the sizes with heatsink included?

Here, the question has already been answered before: http://www.tomshardware.com/answers/id-1716550/measure-fan-size.html

There's also a picture in the link.

 

[13thmonkey]

I think that a picture might be worth a lot more than a thousand words here