💡 Ceiling Fan Wattage Calculator
Calculate your ceiling fan's power consumption, daily & monthly energy use, and efficiency rating
| Fan Size | AC Low (W) | AC Med (W) | AC High (W) | DC High (W) |
|---|---|---|---|---|
| 29 in (74 cm) | 10 | 17 | 28 | 10 |
| 36 in (91 cm) | 15 | 25 | 35 | 14 |
| 42 in (107 cm) | 20 | 35 | 55 | 18 |
| 48 in (122 cm) | 22 | 40 | 65 | 22 |
| 52 in (132 cm) | 25 | 45 | 75 | 28 |
| 56 in (142 cm) | 28 | 50 | 82 | 32 |
| 60 in (152 cm) | 30 | 55 | 95 | 38 |
| 72 in (183 cm) | 45 | 80 | 120 | 55 |
| Wattage | kWh / Day (8 hrs) | kWh / Month | kWh / Year |
|---|---|---|---|
| 15W (small DC) | 0.12 kWh | 3.6 kWh | 43.8 kWh |
| 25W (small AC) | 0.20 kWh | 6.0 kWh | 73.0 kWh |
| 45W (standard) | 0.36 kWh | 10.8 kWh | 131.4 kWh |
| 60W (large AC) | 0.48 kWh | 14.4 kWh | 175.2 kWh |
| 75W (high speed) | 0.60 kWh | 18.0 kWh | 219.0 kWh |
| 95W (extra large) | 0.76 kWh | 22.8 kWh | 277.2 kWh |
| Room Size | Room Size (m²) | Recommended Fan | Typical Wattage |
|---|---|---|---|
| Up to 75 sq ft | Up to 7 m² | 29–36 in | 10–35W |
| 76–144 sq ft | 7–13 m² | 36–42 in | 15–55W |
| 145–225 sq ft | 13–21 m² | 44–50 in | 22–65W |
| 226–400 sq ft | 21–37 m² | 50–54 in | 25–75W |
| 401–625 sq ft | 37–58 m² | 56–60 in | 28–95W |
| 625+ sq ft | 58+ m² | 60–72 in | 30–120W |
| Light Type | Typical Wattage | Lumens | Efficiency |
|---|---|---|---|
| No Light Kit | 0W | — | — |
| LED Kit (standard) | 12–18W | 800–1200 lm | Excellent |
| CFL Kit | 20–30W | 700–1100 lm | Good |
| Incandescent Kit | 40–75W | 600–1100 lm | Poor |
| Halogen Kit | 35–60W | 700–900 lm | Fair |
Ceiling fan use electricity to move the air within a room, and the movement of air create a wind chill effect that makes a person feel cooler. The wind chill effect created by ceiling fans can make a room feel up to eight degrees cooler. This cooler feeling within the room allow a person to set the thermostat in you’re house to a higher temperature to avoid discomfort.
The amount of electricity that a ceiling fan uses depend upon several factors. Some of these factors are the blade spans of the fan, the motor type of the fan, the speed setting of the fan, and whether or not the ceiling fan come with a light kit. The blade span of a ceiling fan is one of the significant factor that affects the amount of electricity that a ceiling fan uses.
How Ceiling Fans Use Electricity
Ceiling fans with larger blades creates more air resistance. Because of this, they requires more electricity to continue to move the blades of the fan. A 36-inch ceiling fan will use less electricity then a 60-inch ceiling fan because the larger the ceiling fan, the more air it must move.
Another factor that determines the amount of electricity that a ceiling fan will use is its motor type. Fans that use traditional AC motors uses more electricity than those that use DC motors. This is because AC motors lose some of the electricity to heat and friction.
DC motors use the electricity to create motion rather than lose any of the electricity to other functions. Fans with high speed settings uses more electricity than ceiling fans with low speed settings. High speed settings for fans will triple the amount of electricity that the fan draws as compared to the amount of electricity that is drawn by a ceiling fan while using its low speed setting.
The type of light kit that is attach to a ceiling fan will also affect the amount of electricity that the fan uses. If the fan uses incandescent bulb, then the bulbs will increase the amount of electricity that the fan uses. However, if the fan use LED bulbs, then the bulbs will use significantly less electricity than incandescent bulbs.
To save electricity, ceiling fans should use LED bulbs rather then incandescent bulbs. The dimensions of the room that is to be cleaned of hot air also dictate the ceiling fan that a person should use. If a ceiling fan is too small for the size of the room, the fan will have to work at higher speeds to ensure that the area is adequate cooled.
Fans that work at higher speeds use more electricity than those that work at lower speeds. Using ceiling fans that are too large for the size of the room mean that a person will pay for the electricity that is used to move air within a room that dont require such strong airflow. To keep ceiling fans running efficient, they must be maintained from time to time.
After periods of time, the blades of the ceiling fan will accumulate dust. The presence of dust on the blades of a ceiling fan will increase the drag that the fan must work against to move the air. The more that the fan has to work, the more that the electric motor will use electricity.
To avoid this build up of dust and the use of excessive electricity, someone should wipe the blades of the ceiling fan every quarter. Using the reverse setting on a ceiling fan help to circulate the heat that is created within the winter month. Using the reverse setting does not lead to the increase of the electricity cost of the fan.
Considering the cost of running a ceiling fan over the course of a month, the longer that a ceiling fan is turned on for, the higher the electricity cost will be. For example, if a person runs a ceiling fan for eight hour every day, the electricity cost will increase over the course of a month. Using an inefficient ceiling fan will cost more electricity than an efficient model.
If a person changes from an AC motor ceiling fan to a DC motor ceiling fan, they can save up to 70 percent on the amount of electricity that the ceiling fan uses. Using up to 70 percent less electricity will save a person money on there electric bill. By considering the type of motor of the ceiling fan, the blade span of the fan, and the speed settings of the fan, a person can purchase a ceiling fan that will provide the same level of cooling for the room without the usage of excesive electricity.
