Ceiling Fan Size Calculator
Enter your room's dimensions to get the recommended ceiling fan sweep size for good, even airflow.
What size fan for a 12x12 room?
A 12x12 ft room is ideally served by a 1200 mm (48 inch) ceiling fan, the standard size for Indian bedrooms and living rooms.
How this works
Fan sweep is measured tip to tip. Match it to the longest wall: up to 8 ft use 600-900 mm, most rooms (10-12 ft) use a 1200 mm fan, and large rooms need 1400 mm or two fans for even airflow.
Match the sweep to the room
Fan sweep is measured tip to tip, and it should match the longest wall of the room. Too small a fan in a big room leaves the corners still; too big in a small room feels like a wind tunnel. For most Indian bedrooms and living rooms a 1200 mm (48 inch) fan is the sweet spot.
Air delivery and mounting
Beyond sweep, check air delivery (CMM) for real cooling, and pick a BLDC motor if you want low running cost — it draws about 28-35 W versus 70-75 W for a conventional fan. Mount the fan so blades sit at least 2.1 m above the floor and 300 mm below the ceiling for the best airflow.
| Longest wall | Sweep | Suits |
|---|---|---|
| Up to 8 ft | 600-900 mm | Balcony, bathroom, small room |
| 8-12 ft | 1200 mm (48") | Standard bedroom / living room |
| 12-15 ft | 1400 mm (56") | Large room |
| Over 15 ft | 2 x 1200-1400 mm | Hall — use two fans |
Frequently asked questions
What size fan for a 12x12 room?
A 12x12 ft room is ideally served by a 1200 mm (48 inch) ceiling fan, the standard size for Indian bedrooms and living rooms.
Is a BLDC fan worth it?
For daily use, yes. A BLDC fan uses less than half the power of a conventional fan and pays back its higher price within a couple of summers.
Can one fan cool a large hall?
For rooms over about 15 ft, one fan leaves dead spots. Two 1200-1400 mm fans give even airflow across a large hall.
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