PC Case Fan Sizes Explained (80mm to 200mm)
PC case fan sizes are standardized millimeter measurements, from 80mm to 200mm, that determine which fans fit your case’s mounting slots. Last updated: July 2026 Quick Answer: What Are the Standard PC Case Fan Sizes? PC case fans come in five standard sizes: 80mm, 92mm, 120mm, 140mm, and 200mm. The two you’ll encounter in almost…