Ceiling Fan Size Calculator
Find the right ceiling fan size for any room.
Get recommended blade span and mounting type based on room dimensions.
Recommended Ceiling Fan Size
Ceiling fan sizing is based on room square footage and ceiling height.
Fan size guidelines by room area:
| Room Area | Fan Blade Span |
|---|---|
| Up to 75 sq ft (7 sq m) | 29–36 inches (74–91 cm) |
| 76–144 sq ft (7–13 sq m) | 36–42 inches (91–107 cm) |
| 145–225 sq ft (13–21 sq m) | 44–50 inches (112–127 cm) |
| 226–400 sq ft (21–37 sq m) | 50–54 inches (127–137 cm) |
| Over 400 sq ft (37+ sq m) | 54–72 inches (137–183 cm) or two fans |
Ceiling height considerations:
- Standard (8 ft / 2.4 m): Use a flush-mount (hugger) fan.
- 9 ft (2.7 m): Standard downrod mount works well.
- 10+ ft (3+ m): Use an extended downrod. Fan blades should be 8–9 feet above the floor.
- Below 8 ft (2.4 m): Use a low-profile flush-mount fan only.
Tips:
- Fans should be at least 18 inches (46 cm) from the nearest wall.
- For large or L-shaped rooms, consider two smaller fans instead of one large one.
- A properly sized fan can make a room feel 4–6 degrees cooler.