Kustom PCs Shop | Cooling | Fans | Fans by Size
 Tip : Fan MeasurementsFans are measured by the width of their casing, so an 80mm fan has an outer casing width of 80mm. The mounting holes are typically offset by 5mm to the centers, so if you don't know the size of fan your case or cooler accepts, measure the distance between the center of two mounting holes and add 10mm (to allow for 5mm gap at each side) to confirm the fan size you need. So a hole distance of 110mm would use a 120mm fan, hole distance of 70mm would use a 80mm fan.
Note that sometimes 92mm fans are referred as 9cm fans - they are the same but just named with a 'rounded' number. | |
Case fans with a depth of 20mm or less. | Fans with an outer casing width of 40mm. In 10 and 20mm depths. |
Fans with an outer casing width of 50mm. | Fans with an outer casing width of 60mm. |
Fans with an outer casing width of 70mm. | Fans with an outer casing width of 80mm. (Most common fan size in older PC cases) |
Fans with an outer casing width of 92mm. (Sometimes referred to as 90mm fans for the sake of rounding) | Fans with an outer casing width of 100mm. |
Fans with an outer casing width of 120mm. (Most common fan size in modern PC cases) | Fans with an outer casing width of 140mm. |
| Fans with an outer casing width of 200mm. |
Fans with an outer casing width of more than 200mm. | |
Kustom PCs Shop | Cooling | Fans | Fans by Size
