How much does a ceiling fan cost to run?

The exact cost of running a ceiling fan varies. When you think about it, it's not hard to see why. Different fans use different motors with anywhere between three and six speeds (maybe more). On top of this, the cost of electricity differs between states and can fluctuate over time. So if you're trying to work out an exact figure, there are a few things you'll need to check:

  • The rate you're currently paying for electricity
  • The wattage on your fan
  • You may also be able to check the wattage on lower speeds. If you know that you prefer to use a fan on its lowest setting, this will give you a better estimate. 

If you're not sure about these things, it's still a very safe bet that a ceiling fan is one of the cheapest ways to cool your home effectively. Air conditioners, for example, use much higher wattage motors, so they are much more expensive to run. 

Let's say that you pay 28c per kilowatt-hour right now. This price is the standard peak rate in Victoria. Even the most energy-intensive ceiling fans aren't likely to use much more than 100 watts at top speed. Based on our calculations, will only cost 2.8c an hour to run a 100-watt ceiling fan at peak time. 

It's easy to work out how much your ceiling fan costs to run yourself. The first thing you need to do is convert the watts your fan uses into kilowatts. So divide the watts on your fan by 1000. Now that you know how many kilowatts your fan uses, it's simple to find the running cost. Multiply the kilowatts by the electricity rate to find how much it costs to run your fan per hour. 

In our example, we used a 100-watt fan in a household paying 28c per kilowatt-hour. Our formula looks like this:

100w ÷ 1000 = 0.1 (kWh per hour)

28c x 0.1 = 2.8

To make it easier for you, we made the table below. You will still need to know the rate you're paying for electricity, but this should give you a pretty good idea. Remember these numbers represent cents, not dollars! Ceiling fans really are very cost-effective. 

←   Your Electricity (Cents Per Kilowatt-Hour) →







Watts

 

22

24

26

28

30

32

34

36

38

40

20 watts

0.44

cents per hour

 0.48

cents per hour

0.52 

cents per hour

0.56 

cents per hour

0.6 

cents per hour

0.64

cents per hour 

0.68

cents per hour 

0.72

cents per hour 

 0.76 

cents per hour

0.8

cents per hour 

25 watts

0.55

cents per hour

0.6 

cents per hour

0.65

cents per hour 

 0.7

cents per hour

0.75

cents per hour 

0.8

cents per hour 

0.85

cents per hour 

0.9 

cents per hour 

 0.95

cents per hour

1

cent per hour 

30 watts

0.66

cents per hour

0.72 

cents per hour

0.78 

cents per hour

0.84

cents per hour 

0.9

cents per hour 

0.96

cents per hour 

1.02

cents per hour 

 1.08

cents per hour

1.14

cents per hour 

 1.2

cents per hour

35 watts

0.77

cents per hour

0.84

cents per hour

0.91

cents per hour

0.98

cents per hour

1.05

cents per hour 

1.12

cents per hour 

1.19

cents per hour 

1.26

cents per hour 

1.35

cents per hour 

1.4

cents per hour 

40 watts

0.88

cents per hour

0.96 

cents per hour

1.04

cents per hour

1.12

cents per hour

1.2

cents per hour

1.28 

cents per hour 

1.36

cents per hour 

1.44

cents per hour 

 1.52

cents per hour

 1.6 

cents per hour

45 watts

0.99

cents per hour

1.08

cents per hour

1.17

cents per hour

1.26

cents per hour

1.35

cents per hour

1.44 

cents per hour

1.53

cents per hour 

1.62

cents per hour 

1.71

cents per hour 

 1.8

cents per hour

50 watts

1.1

cents per hour

1.2

cents per hour

1.3 

cents per hour

1.4 

cents per hour

1.5

cents per hour

1.6 

cents per hour

1.7

cents per hour

1.8

cents per hour 

 1.9

cents per hour

 2 

cents per hour

55 watts

1.21

cents per hour

1.32

cents per hour

1.43

cents per hour

1.54

cents per hour

1.64

cents per hour

1.75

cents per hour

1.86

cents per hour

1.98

cents per hour

2.09

cents per hour

2.2

cents per hour 

60 watts

1.32

cents per hour

1.44

cents per hour

1.56

cents per hour

1.68

cents per hour

1.8

cents per hour

1.92

cents per hour

2.04

cents per hour

2.16

cents per hour

2.28

cents per hour

 2.4

cents per hour

65 watts

1.43

cents per hour

1.56

cents per hour

1.69

cents per hour

1.82

cents per hour

1.95

cents per hour

2.08

cents per hour

2.21

cents per hour

2.34

cents per hour

2.47

cents per hour

2.6

cents per hour

70 watts

1.54

cents per hour

1.68

cents per hour

1.82

cents per hour

1.96

cents per hour

2.1

cents per hour

2.24

cents per hour

2.38

cents per hour

1.52

cents per hour

1.66

cents per hour

2.8

cents per hour

75 watts

1.65

cents per hour

1.8

cents per hour

1.95

cents per hour

2.1

cents per hour

2.25

cents per hour

2.4

cents per hour

2.55

cents per hour

2.7

cents per hour

2.85

cents per hour

3

cents per hour

80 watts

1.76

cents per hour

1.92

cents per hour

2.08

cents per hour

2.24

cents per hour

2.4

cents per hour

2.56

cents per hour

2.72

cents per hour

2.88

cents per hour

3.04

cents per hour

3.2

cents per hour

85 watts

1.87

cents per hour

2.04

cents per hour

2.21 

cents per hour

2.38

cents per hour

2.55

cents per hour

2.72

cents per hour

2.89

cents per hour

3.06 

cents per hour

3.23

cents per hour

3.4

cents per hour

90 watts

1.98

cents per hour

2.16 

cents per hour

2.34

cents per hour

2.52

cents per hour

2.7

cents per hour

2.88 

cents per hour

3.06

cents per hour

3.24

cents per hour

3.42

cents per hour

3.61

cents per hour

95 watts

2.09

cents per hour

2.28

cents per hour

2.47

cents per hour

2.66

cents per hour

2.85 

cents per hour

3.04

cents per hour

3.23

cents per hour

3.42

cents per hour

3.6

cents per hour

3.8

cents per hour

100 watts

2.2

cents per hour

2.4

cents per hour

2.6 

cents per hour

2.8

cents per hour

cents per hour

3.2

cents per hour

3.4

cents per hour

3.6

cents per hour

3.8

cents per hour

4

cents per hour