Ceiling Fan Size Calculator: Which Sweep for My Room?
Free tool · Updated October 2, 2026 · By CouponTalk
Your result
Enter your measurements to see your result.
Quick answer
Ceiling fans are sized by sweep (blade span). Rooms up to 75 sq ft need a 900 mm fan, 75–125 sq ft a 1,050–1,200 mm fan, 125–175 sq ft a 1,200 mm fan and 175–250 sq ft a 1,400 mm fan. Larger halls need two fans. Blades should be 8–9 ft above the floor and at least 1 ft below the ceiling.
How to use this calculator
- Measure the room length and width in feet.
- Measure ceiling height to plan the down-rod length.
- Read the recommended sweep and mounting height.
Reference table
| Room area | Fan sweep |
|---|---|
| Up to 75 sq ft | 900 mm (36") |
| 75–125 sq ft | 1050–1200 mm (42–48") |
| 125–175 sq ft | 1200 mm (48") |
| 175–250 sq ft | 1400 mm (56") |
| Over 250 sq ft | Two fans |
These are typical figures for Indian homes. Check the product spec sheet, and ask an electrician or installer before you buy or fit anything.
Frequently asked questions
Is a 1200 mm fan good for a 12 × 12 room?
Yes. A 144 sq ft room suits a 1,200 mm (48") fan.
Are BLDC fans worth it?
BLDC fans use about 28–35 W against 70–80 W for regular fans, which can save ₹1,000+ a year per fan with heavy use.
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