Ceiling Fan Size Calculator — Free Online Ceiling Fan Size Calculator
Find the right ceiling fan size for your room. 100% free, no signup.
Recommended fan size
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Room area0 ft²
Largest wall— ft
Tip—
What size ceiling fan do I need?
Match the fan's blade span to the room size: small rooms up to ~75 ft² suit a 29–36 in fan, medium rooms (75–175 ft²) a 42–48 in fan, and large rooms (175–350 ft²) a 52–56 in fan. Rooms over ~400 ft² often look and perform best with two fans.
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Frequently asked questions
How do I size a ceiling fan?
Use the room area: up to 75 ft² → 29–36 in, 75–175 ft² → 42–48 in, 175–350 ft² → 52–56 in, and over 400 ft² consider two fans.
How high should it hang?
Keep blades at least 7 ft above the floor and 18 in from walls; on high ceilings use a downrod so the fan sits about 8–9 ft up.
Styling the room too?
Download RoomGPT free and see your room — fixtures, colors and all — reimagined in 100+ styles from a photo.