๐ Household
Ceiling Fan Size Calculator
Fan size is about air movement across the room, so it tracks floor area rather than a single dimension. A small room up to 75 square feet takes a 36-inch fan, while a great room over 400 square feet wants two fans or a blade span above 60 inches.
How it works
Room length
Room width
Ceiling height
Room area
Recommended blade span
Blade height below the ceiling
Fans needed
Mounting
Frequently asked questions
How do I use the Ceiling Fan Size Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.