When summer hits and the UK starts to feel like a sauna, a fan can be your best friend. But if you’re wondering, “How much does it cost to run a fan all day?” - you’re not alone.
The good news? Fans are one of the most energy-efficient ways to stay cool. Most models use between 20 and 100 watts, depending on type and speed. That’s a fraction of what air conditioners or heaters consume, so you can enjoy a breeze without worrying about your energy bill.
Why fans use relatively little electricity
Here’s the science bit: fans don’t actually cool the air - they move it around. This airflow helps sweat evaporate, making you feel cooler without lowering the room temperature. Because they’re not working against physics like an air conditioner does, fans need far less energy. So even if you run one for hours, the cost is tiny compared to other cooling options.
Typical power consumption of different fan types
Not all fans are created equal. Here’s what you can expect from the most common types:
Ceiling fans
Efficient and great for continuous use: typically 50–75 W on high, and as low as 3–6 W on low for ultra-efficient models. Perfect for gentle cooling all day.
Table, pedestal, standing and tower fans
Versatile and portable, these usually draw 40–60 W, with some models reaching 100 W on high. Ideal for bedrooms or living rooms.
Box and industrial fans
Built for power, these can range from 60–220 W, so they cost more to run but deliver serious airflow—great for garages or workshops.
How much does a fan cost to run in the UK?
Here’s the simple formula:
Watts ÷ 1000 × kWh rate
With the average UK tariff around 28p per kWh (2025), a 50 W fan costs about 1.4p per hour. Even a 100 W fan only costs 2.8p per hour. Compare that to an air conditioner, which can cost 30–40p per hour, and fans look like a bargain.
Examples: cost per hour, day, and month
Ceiling fan (30 W): ~0.8p per hour, ~19p for 24 hours
Pedestal fan (60 W): ~1.7p per hour, ~40p for 24 hours
Industrial fan (200 W): ~5.6p per hour, ~£1.34 for 24 hours
Run a fan all night? A typical pedestal fan costs less than 15p for 8 hours. Even running one 24/7 for a month would only add a few pounds to your bill.
Fan (50W): ~1.4p per hour
Air Conditioner (1500W): ~42p per hour
Electric Heater (2500W): ~70p per hour
Fans are clearly the most budget-friendly option.
Tips to reduce your fan’s electricity use
Want to save even more? Try these simple tricks:
Use the lowest effective speed – higher speeds mean higher wattage.
Pair with open windows for better airflow without extra power.
Turn it off when you leave the room – fans cool people, not spaces.
Keep blades clean – dust can reduce efficiency.
Combine with other cooling hacks like blackout curtains to keep heat out.
Looking for the right fan?
Check out fans or explore air conditioners if you need extra cooling. Want recommendations? Read 4 fans to help you beat the heat – tried and tested.
Are fans expensive to run compared to other appliances?
Not at all. Here’s a quick comparison:
Fan (50 W): ~1.4p per hour
Air conditioner: ~30–40p per hour
Electric heater: ~70p per hour
So if you’re looking for a cost-effective way to stay comfortable, fans win hands down.
FAQs
Do fans cool rooms?
No - fans don’t lower the temperature. They move air around, which helps you feel cooler by speeding up evaporation on your skin.
Is it OK to run a fan all night?
Yes, it’s safe and costs very little - usually under 15p for 8 hours. Just make sure the fan is in good condition and placed securely.
How much does it cost to run a fan 24/7?
A typical 50 W fan costs about £10 - £12 per month if left on continuously. Still far cheaper than air conditioning.
Are fans expensive to run compared to air conditioners?
Not at all. Fans cost pennies per hour, while air conditioners can cost 30 - 40p per hour.
How can I make my fan more effective?
Use it with open windows or alongside a bowl of ice for a cooling boost. And keep those blades clean!
Bottom line: Fans are one of the cheapest ways to stay cool in summer. Even running one all day costs less than your morning coffee. For more tips, trips and expert guidance, check out our Fans, heating & air treatment buying guide
