🌬️ Fan
How much electricity does a fan use? vs air conditioning
Desk, pedestal, tower and ceiling fan power use, cost per day and comparison with air conditioning.
Typical power
45 W
Cost per hour
$0.008 · £0.012
Per year · 32 kWh
$6 · £8
With 8 hours a day for 90 days a year, electricity at $0.18/kWh and £0.26/kWh all-in.
A fan uses 25–60 W: 8 hours a day all summer is about 30 kWh, a few euros. An inverter air conditioner uses ten to twenty times as much.
A fan doesn’t lower the temperature: it moves air and evaporates sweat, which feels 2–3 °C cooler. It’s often enough on warm but not scorching days.
Consumption compared
| Type | Usage | kWh/year | Cost/year |
|---|---|---|---|
| Desk fan | 30 W | 22 | $4 · £6 |
| Pedestal fan | 50 W | 36 | $6 · £9 |
| Tower fan | 45 W | 32 | $6 · £8 |
| Ceiling fan, DC motor | 25 W | 18 | $3 · £5 |
| Inverter air conditioner, for comparison | 700 W | 504 | $91 · £131 |
Yearly cost with 8 hours a day for 90 days a year.
Work out your cost
- Per hour
- $0.008
- Per month
- $0.49
- Per year
- $6
- Energy per year
- 32.4 kWh
The price is a typical all-in figure for your country: replace it with yours (bill total ÷ kWh).
How to use less
- Use a fan with the AC set to 27–28 °C instead of 24: same comfort, much lower consumption.
- Switch it off when you leave the room: it cools people, not the room.
- DC motor fans use up to 70% less at low speed.
FAQ
- How much electricity does a fan use?
- About 45 W, or 0 kWh for each hour of use; from 5 to 100 W depending on the model.
- How much does it cost per year?
- With 8 hours a day for 90 days a year it uses about 32 kWh a year: about $6 · £8 at $0.18/kWh and £0.26/kWh.
- How can I reduce it?
- Use a fan with the AC set to 27–28 °C instead of 24: same comfort, much lower consumption. Switch it off when you leave the room: it cools people, not the room.
And what does your whole home use?
The calculator estimates heating, hot water and appliances and tells you what to change first.
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