how to know what size case fan you need ?

A cooling fan is very important in any gaming system, it acts as ventilation which brings cold air in, throws hot air out which at the end saves your components from getting damaged.

After spending a lot of money on your gaming rig you also might wanna upgrade your stock cooling fan to an aftermarket CPU case fan which provides better cooling in comparison to your old fan.

Now as we have already guessed that you are going to get an aftermarket case fan and already bought a CPU case and that's why you are wondering about what fan size you actually need then you don't need to worry! We got you covered.

Benefits of installing an aftermarket CPU case fan.

There are a lot of benefits of having an aftermarket fan not only it looks better but it also performs better than the stock fan which comes free with your case.

More Airflow - The aftermarket fans will have bigger blades which allows more airflow. You can also get a fan which supports variable RPM.

Quieter Pc - Trust me, Stock fans make a lot of noise and you might want to switch to a fan which allows noiseless operation.

Lesser CPU temperature - The more the Airflow the lesser the temperature. Aftermarket fans will definitely cool your CPU better than your stock cooler.

Here's how you can figure out what fan size you need

The very important thing is to figure out what fan size you need before actually buying a fan. The most common ones come in 80mm, 92mm, 120mm, 140mm. Out of these the 120mm fans are most used so you can also check out some of the Best 120mm Case Fan that you can buy.

Now if you already have a stock CPU fan laying around then you can easily figure out what fan size you actually need by reading the labels or sticker on it. In case you don't have one then you can manually figure out just with the help of a measuring tape.

Here's how

Locate the 4 screws on the side of your CPU case and measure from one screw to another. Make sure to measure from edge to edge, horizontally and vertically and not diagonally. Then you can easily determine the size between the two screw holes. Now when you have got the measurement you can refer to the table below and figure out your fan size.
Fan sizes according to screw holes
Here are the common fan sizes according to the distance between the screw holes so you can easily check them from the list and figure it out.

32mm between the screw holes - 40mm fan size
40mm between the screw holes - 50mm fan size
50mm between the screw holes - 60mm fan size
60mm between the screw holes - 70mm fan size
72mm between the screw holes - 80mm fan size
83mm between the screw holes - 92mm fan size
105mm between the screw holes - 120mm fan size
120mm between the screw holes - 140mm fan size

So if you measured 83mm then you will need a 92mm case fan to along with your case.

Final words

So this is it. Hope we made your doubts clear about figuring out what fan size you need and in case you still have any doubt or confusing then don't forget to let us know in the comments below. We will be more than happy to help you out. If you do like the article then don't forget to share it with your friends.

That’s all for today. Keep following; we will be back with another exciting article very soon!