Ceiling Fan Size Guide
Enter your room dimensions to get a recommended ceiling fan blade span that will circulate air efficiently.
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Recommendation
Recommended fan size
| Room size | Fan blade span |
|---|---|
| Up to 75 sqft | 29–36 in |
| 76–144 sqft | 36–42 in |
| 145–225 sqft | 44–50 in |
| 226–400 sqft | 50–54 in |
| Over 400 sqft | 56–72 in (or 2 fans) |
How to use
- Enter your room length and width in feet.
- The calculator computes the floor area and maps it to industry-standard fan sizes.
- Use the reference table below to compare options from different manufacturers.
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FAQ
- Is this tool free?
- Yes, completely free with no signup required.
- Does my data leave my device?
- No. All calculations happen in your browser — nothing is sent to a server.
- Does it work on mobile?
- Yes. The tool is mobile-first and works on any modern browser.