Find the right fan size

A 12×12 ft room is 144 sq.ft. At a 10 ft ceiling without AC, this calculator suggests one 1400mm fan under its coverage assumptions. Enter your actual ceiling height and AC use, then check the chosen model's air delivery and installation requirements; the calculator does not measure CMM.

The nominal sweep differs by 200mm: 1200mm is commonly called 48-inch, and 1400mm 56-inch. Larger sweep does not establish a particular model's CMM, noise, or efficiency. Compare rated airflow and power for the models you shortlist.

Enter room width, length, ceiling height, and AC use above. The calculator compares 900mm, 1200mm, and 1400mm options using planning coverage and room-shape assumptions. Then compare the rated air delivery of actual models and ask an installer to confirm placement and clearance.

CMM means cubic metres per minute, a fan's rated air delivery under test conditions. Compare CMM between fans of the same sweep, along with watts and service value (CMM divided by watts). This calculator does not take a model's CMM as input.

Measure the hall's width and length. A long room or separate seating and dining zones may need more than one fan, and the calculator considers both area and the longest side. Have a qualified installer check mounting and clearances for the exact model.