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What Size Ceiling Fan Do You Need?
Calculate the right ceiling fan diameter and CFM for your room size. Avoid buying one that is too small.
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India
<100 sq ft: 900mm। 100-150: 1050mm। 150-225: 1200mm (most common!)。 225+: 1400mm or two fans। BLDC fans: 50% electricity saving! Atomberg, Crompton: top BLDC. ₹2,000-4,000 — payback 1-2 years。
BLDC
₹1,000 more than regular but saves ₹500-1,000/year electricity. Remote control, sleep mode included。
⚡ CalcWolf Insight
The most energy-efficient cooling strategy: ceiling fan + thermostat raised 4°F. The fan costs 1/50th what the AC costs to run. A family using fans to raise their thermostat from 72°F to 76°F saves $200-400 per cooling season. Fans cool people, not rooms — turn them off when you leave.
Frequently asked questions
12×15 room?▾
1200mm (48"). Indias most popular size。
BLDC worth it?▾
Absolutely! 50% savings. Payback 1-2 years. Atomberg Renesa popular。
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