For rooms up to 12' x 12' Use 42" - 48" ceiling fans.
Ceiling Fan Sizes by Room
Medium: If your room is up to 12' x 14', stick with a fan that is 42" – 54" in diameter. Medium rooms include bedrooms and dining rooms. Large: A room that is up to 18' x 20' should feature ceiling fan sizes 52" – 60" in diameter. This includes family rooms and large bedrooms.
Ceiling Fan for 10x12 room
This is a 120-square-foot room, so your best fan should measure between 36" and 44". This will provide an optimal air circulation balance without being too large for the space.
As a general guide: Small bedrooms (up to 75 square feet) can benefit from 29-36 inches fans. Medium bedrooms (76-144 square feet) find comfort with fans between 36 and 42 inches. Larger bedrooms (145-225 square feet) can accommodate fans up to 50 inches for optimal airflow.
Install a fan with a 42-inch sweep in rooms up to 144 square feet. Install a fan with a 44-inch sweep in rooms from 144 to 225 square feet. Install a fan with a 52-inch sweep in rooms from 225 to 400 square feet. Larger rooms may need more than one fan.
If you install a fan that's too small for your room, it won't circulate air effectively to make the room feel cool. Alternatively, installing a ceiling fan that's too large for your room could overpower the space.
Remember, a well-designed 3-blade fan can deliver impressive airflow, while a 5-blade fan with a less powerful motor might be quieter or more efficient. More blades aren't necessarily better.
Smaller personal fans have the lowest wattage range of any fan, usually only 5 to 15 watts. These fans only use a fraction of the energy that pedestal and ceiling fans do, meaning that they are much cheaper to run. A personal fan that runs for 8 hours a day will use about 0.12 kWh per day, or 3.6 kWh over a month.
For rooms of up to 75 square feet, look for ceiling fans that are between 29 to 36 inches. For rooms from 75 to 175 square feet, look for ceiling fans that are between 42 to 48 inches. For rooms from 175 to 350 square feet, look for ceiling fans that are between 52 to 56 inches.
While you can choose a longer fan blade replacement, it's important to note that your fan's motor is most responsible for the airflow, and bigger blades won't make much difference when it comes to cooling your room.
A ceiling fan should complement or contrast your room's existing color scheme. For a harmonious look, match your fan with the dominant color of your room. For a bold statement, choose a contrasting color that stands out but still ties in with your décor.
When choosing between a three-blade and a five-blade with the same shape, material, pitch, and speed, a five-blade ceiling fan is the way to go if you're looking for more airflow. In a five-blade fan, the distance between the blades is smaller and offers a more consistent wind production.
MORE AIR CIRCULATION
Large ceiling fans, such as those with a 70 to 84-inch blade span, are designed to move up to 10,000-14,000 cubic feet of air per minute (CFM). This increased airflow is perfect for larger spaces like living rooms, great rooms, or open-concept areas.
If you're looking for a fan that moves the most air, consider a large ceiling fan with a high blade pitch, a high-quality motor, and high RPM.
What size ceiling fan do I need for a 12x12 room? A 12x12 room would have an area of 144 square feet, which means you'll need a large ceiling fan between 36 and 50 inches. For more help, see "Choose the Right Ceiling Fan for Your Space" above.
A typical fan consumes between 50 and 100 Watts per hour. Above everything, this is an interesting saving, when you consider that standard air conditioning consumes around 700 watts per hour. This means that not only can you save on installing expensive air con, but your electricity bill will also benefit.
Reality: Contrary to popular belief, ceiling fans do not decrease the actual air temperature in a room. Instead, they generate a wind chill effect akin to the refreshing sensation of a breeze on a warm day. Enhancing sweat evaporation as air moves across your skin creates a sensation of coolness.
How many square feet is a 12x12 room? To measure square footage, multiply the length and width of the room in feet. In the case of a 12x12 room, simply multiply 12 by 12, resulting in 144 square feet.
A large ceiling fan in a small room will create an uncomfortable amount of airflow. Unless you like replacing your ceiling fan every few months or feeling as if you're in a tornado, choose a ceiling fan that is proportionate to the room size.