What It Costs to Run an Electric Fan Air Fryer or Tumble Dryer

How much does it actually cost to run an electric fan, air fryer or tumble dryer? The answer can be surprisingly different from what you might expect.

A small electric fan may use only a few pence of electricity over an evening, while an air fryer can cost considerably more per hour but often finishes cooking much faster than a conventional oven. A tumble dryer sits at the other end of the scale: depending on its technology, load and programme, one drying cycle can use several times as much electricity as running a fan for an entire day.

For a useful UK comparison, this article uses 26.11p per kWh, the average electricity unit rate under Ofgem's price cap for Direct Debit customers from 1 July to 30 September 2026. Your own tariff may be cheaper or more expensive. Ofgem also makes clear that actual rates vary according to region, payment method and meter type.

The simplest calculation is:

Electricity cost = appliance power in kW × hours used × electricity price per kWh

So, for example, a 2,000-watt appliance uses 2kWh if it operates continuously for one hour. At 26.11p per kWh, that would cost about 52p.

But appliances do not always draw their maximum rated power continuously. Thermostats, heating elements, motors, fans and automatic programmes can change consumption during use. That is why the wattage printed on the appliance is a useful starting point rather than a guarantee of the exact amount appearing on your bill.

This guide breaks down the likely running cost of each appliance, compares them directly, explains which models and habits make the biggest difference, and shows how to calculate the cost of your own equipment.

How much does it cost to run an electric fan, air fryer or tumble dryer?

The three appliances have very different electricity demands. A fan is generally the cheapest to run, an air fryer uses more electricity per hour but normally operates for much less time, and a tumble dryer is usually the most expensive of the three, particularly if it is an older vented or conventional condenser model.

Using 26.11p/kWh as a working electricity price, the broad picture looks like this:

Appliance	Example power/use	Approximate electricity cost
Electric fan	50W for 8 hours	About 10p
Electric fan	75W for 8 hours	About 16p
Air fryer	1.5kW for 30 minutes	About 20p
Air fryer	1.8kW for 30 minutes	About 24p
Air fryer	2kW for 30 minutes	About 26p
Tumble dryer	2.5kW for 1 hour	About 65p
Tumble dryer	2.5kW for 90 minutes	About 98p
Heat-pump dryer	Model-specific cycle consumption	Often substantially lower

These are illustrations rather than promises about particular appliances. The actual figure depends on the machine, programme, thermostat behaviour, load and tariff.

What does the electricity price mean for your appliance?

The electricity unit rate is the key number to keep in mind.

Ofgem's current average Direct Debit electricity rate for the 1 July to 30 September 2026 price-cap period is 26.11p/kWh, including VAT. The price cap is not a limit on your total bill; it limits the unit rates and standing charges suppliers can apply to default tariffs, while your actual bill depends on how much electricity you use.

The calculation therefore becomes straightforward:

100W appliance for 10 hours = 1kWh

At 26.11p/kWh:

1kWh × 26.11p = 26.11p

A 2,000W appliance running for 30 minutes also uses 1kWh:

2kW × 0.5 hours = 1kWh

That is why a powerful appliance does not necessarily cost a fortune every time you switch it on. Duration matters just as much as wattage.

How much does an electric fan cost to run?

An electric fan is one of the least expensive household appliances to operate.

Many portable fans have a rated power somewhere around 20W to 75W, although larger pedestal, tower and high-performance models can consume more. The precise figure is normally printed on the appliance or supplied in its technical specifications.

Consider a 50W fan.

50W = 0.05kW.

If you run it for eight hours:

0.05 × 8 = 0.4kWh

At 26.11p/kWh:

0.4 × 26.11p = 10.44p

So an illustrative 50W fan running continuously for eight hours would use roughly 10p of electricity at that rate.

Run it for eight hours every night for 30 nights and the electricity consumption would be:

0.05 × 8 × 30 = 12kWh

That works out at about:

£3.13 per month

A 75W fan under the same conditions would cost approximately £4.70 a month.

Why fan speed matters

The lowest setting generally consumes less electricity than the highest setting, although the reduction depends on the particular fan.

If you're using a fan overnight, the lowest setting that keeps you comfortable can therefore reduce consumption. However, there is little financial benefit in obsessing over a difference of a few watts if it makes the room uncomfortable and causes you to use another, more energy-intensive cooling method.

The bigger point is that fans move air rather than actually lowering the air temperature in the way an air-conditioning system does. They can make you feel cooler by increasing air movement across your skin.

Is it expensive to leave a fan on overnight?

Usually, no.

A modest fan running for eight hours is likely to cost only around 10p to 20p per night, depending on its power rating and your electricity tariff.

For example, a 40W fan:

0.04kW × 8 hours = 0.32kWh

At 26.11p/kWh, that is about 8p.

A 100W fan under the same conditions would use 0.8kWh, costing about 21p.

The easiest way to get an accurate answer is to check the wattage on your own fan rather than relying on an average.

How much does an air fryer cost to run?

Air fryers are more powerful than fans, but their short cooking times can make their overall electricity use quite reasonable.

Typical air fryers can have rated powers around 1.2kW to 2.0kW or more, depending on capacity and design.

Suppose your air fryer is rated at 1.8kW and you use it for 30 minutes.

1.8 × 0.5 = 0.9kWh

At 26.11p/kWh:

0.9 × 26.11p = 23.5p

So a half-hour cooking session would be roughly 24p if the appliance actually consumed its full rated power throughout the period.

Use it for 20 minutes instead:

1.8 × ⅓ = 0.6kWh

That costs about 16p.

This is one reason air fryers can be attractive for smaller meals. Their heating chamber is relatively compact, and many foods cook quickly.

Does an air fryer use less electricity than an oven?

Often, particularly for small portions, but the exact saving depends on the oven, air fryer, cooking temperature, preheating time, food quantity and cooking duration.

An air fryer does not automatically use less electricity simply because it is an air fryer. What matters is how many kilowatt-hours it actually consumes for the meal.

A large oven may have a much higher rated power, while an air fryer can finish the same small portion considerably faster. For a single serving of chips, chicken pieces or vegetables, that combination can favour the air fryer.

For a large family meal, however, the comparison becomes less straightforward. You may need several air-fryer batches, which increases the total operating time.

A practical comparison

Imagine you need to cook a small meal.

An air fryer uses 1.8kW for 25 minutes:

1.8 × 0.417 = 0.75kWh

Cost:

0.75 × 26.11p = about 19.6p

If using an oven requires a longer preheat and cooking period, its total electricity consumption could be higher. But you should compare measured or manufacturer-provided energy consumption rather than assuming one appliance is always cheaper.

How much does a tumble dryer cost to run?

Tumble dryers generally deserve more attention when you're trying to reduce electricity use.

A conventional electric dryer can consume considerably more electricity than a fan or air fryer. However, there is a major difference between technologies.

There are three broad types readers are likely to encounter:

• Vented tumble dryers
• Conventional condenser tumble dryers
• Heat-pump tumble dryers

The running-cost difference between them can be substantial.

Which?'s July 2026 analysis, based on 26.11p/kWh and three cotton loads per week, illustrates the difference particularly clearly. It reported annual energy costs of £165 for a tested vented model, £127 for a tested condenser model and £44 for a tested heat-pump model. Those are model-specific test results, not universal prices for every dryer of that type.

Why heat-pump tumble dryers can be much cheaper

A heat-pump tumble dryer recycles heat within the drying system instead of continuously generating heat in the same way as many traditional designs.

That means it can achieve drying with considerably less electricity in many situations.

The trade-off is usually a higher purchase price and, depending on the model, longer programme times.

This creates an important household decision:

Do you want the lowest purchase price, or the lowest combined purchase and running cost over several years?

For someone who uses a tumble dryer occasionally, paying a large premium for efficiency may not always make financial sense.

For a family running several loads every week, the calculation can be very different.

What does one tumble-dryer cycle cost?

There is no single universal figure.

The best number is the energy consumption shown for your specific dryer or measured from the socket.

For a simple illustration, imagine a conventional dryer uses 2.5kWh for a particular cycle.

At 26.11p/kWh:

2.5 × 26.11p = 65.3p

One cycle would therefore cost about 65p.

If you run three such cycles every week:

£0.653 × 3 × 52 = about £102 per year

If the dryer instead uses 4kWh per cycle, the annual cost at the same frequency would be about £163.

This demonstrates why the type and efficiency of the dryer can matter much more than small changes in fan or air-fryer usage.

Don't judge a tumble dryer by its wattage alone

A dryer rated at 2,500W does not necessarily use 2.5kWh every hour from start to finish.

Heating systems cycle. Programmes change. Sensors may detect moisture. Motors and fans have different power requirements.

The most useful figure is therefore the energy consumption for a drying programme, where available, rather than simply multiplying the maximum rated power by the programme duration.

UK product-information rules provide energy-consumption information for tumble dryers, including weighted energy consumption and programme information.

Which is cheapest: a fan, air fryer or tumble dryer?

For normal household use, a fan is generally the cheapest to run.

An air fryer typically costs more per hour because its heating element has a much higher power rating, but its short cooking periods keep total consumption relatively low.

A tumble dryer is usually the most electricity-intensive of the three, particularly if it is an older or less efficient model.

Appliance	Typical operating pattern	General cost position
Electric fan	Several hours at low power	Cheapest
Air fryer	Short periods at high power	Low to moderate
Heat-pump tumble dryer	Longer drying cycle, efficient technology	Moderate
Conventional condenser/vented dryer	Longer cycle and high heat demand	Highest of these examples

The important qualification is that "cheapest appliance" and "cheapest individual use" are not the same thing.

A fan running for 12 hours consumes less than an air fryer running for 30 minutes in many cases. But a high-powered fan left on continuously could eventually consume more than a rarely used air fryer.

How can you calculate the exact cost of your appliance?

You only need three pieces of information:

1. Wattage or power consumption
2. How long you use the appliance
3. Your electricity unit rate

Use this formula:

Cost = watts ÷ 1,000 × hours × price per kWh

For example, a 75W fan used for six hours at 26.11p/kWh:

75 ÷ 1,000 × 6 × £0.2611 = £0.1175

So it costs approximately 12p.

For a 2,000W air fryer used for 30 minutes:

2,000 ÷ 1,000 × 0.5 × £0.2611 = £0.2611

Approximately 26p.

For a dryer consuming 3kWh over a programme:

3 × £0.2611 = £0.7833

Approximately 78p.

How much could these appliances add to a monthly bill?

Usage makes a bigger difference than the appliance's label.

Consider this illustrative household:

• 50W fan for 8 hours every day
• 1.8kW air fryer for 30 minutes every day
• 3kWh tumble-dryer cycle three times a week

The fan would consume around:

12kWh per month

The air fryer would consume around:

27kWh per month

The tumble dryer would consume around:

39kWh per month

Combined consumption would therefore be approximately:

78kWh per month

At 26.11p/kWh, that would be about:

£20.35 per month

This is only an illustration. It does not include standing charges, and real appliances may consume more or less than the assumed figures.

The biggest ways to reduce tumble-dryer costs

If you're trying to lower electricity use, the tumble dryer is usually the place to concentrate first.

Dry clothes properly in the washing machine

A higher spin speed can remove more water before clothes enter the dryer, although the appropriate setting depends on the fabric and garment.

Less moisture means the dryer has less work to do.

Avoid half-empty loads

If the programme and manufacturer allow it, drying a reasonably full load can make better use of each cycle.

But do not overfill the drum. Clothes need room to move and warm air needs to circulate.

Clean filters and heat exchangers

A blocked filter or restricted airflow can make drying less effective and may increase the time required.

Follow the manufacturer's maintenance instructions.

Use sensor programmes where appropriate

Automatic programmes can stop when clothes reach the desired dryness rather than simply operating for a predetermined maximum period.

That can prevent unnecessary drying.

Consider a heat-pump model when replacing an old dryer

Purchase price is only part of the ownership cost.

Which?'s 2026 testing illustrates how a higher-priced heat-pump machine can have substantially lower annual energy costs than tested conventional alternatives.

How can you make an air fryer cheaper to run?

Air-fryer savings are mostly about avoiding unnecessary operating time.

Use the right programme and temperature rather than automatically selecting the longest setting.

Preheating is another consideration. Some recipes benefit from it, while others can start in a cold air fryer depending on the food and manufacturer's guidance.

Avoid repeatedly opening the basket because heat is lost and cooking can take longer.

For small portions, choose the air fryer instead of automatically heating a large oven. But for a large meal that requires several batches, compare the total cooking time.

How can you reduce the cost of running a fan?

Fans are already relatively cheap to run, so the financial savings available are modest.

Still, you can:

• Use the lowest comfortable speed.
• Switch it off when you leave the room.
• Use a timer overnight if appropriate.
• Keep doors and windows positioned to make better use of natural airflow.
• Clean the fan according to the manufacturer's instructions so airflow is not restricted.

The biggest mistake is assuming a fan is expensive simply because it runs for many hours. Its low wattage is what keeps the electricity cost comparatively small.

Does switching appliances off at the socket save much money?

It depends on the appliance and whether it continues drawing power while idle.

Modern appliances often have very low standby consumption, so switching every device off at the wall will not necessarily produce a dramatic saving.

The more meaningful strategy is to identify appliances that consume substantial electricity during active use.

For these three examples, running a tumble dryer for an additional hour matters far more than worrying about the tiny standby consumption of a fan.

What about the standing charge?

The appliance calculations above concern electricity consumption only.

Your electricity bill also contains a standing charge. That is a fixed daily amount associated with your electricity supply rather than with individual appliances.

Ofgem's average electricity standing charge for Direct Debit customers during the July–September 2026 price-cap period is 57.19p per day, although the actual figure depends on region and payment method.

You do not normally add the entire standing charge to the cost of every appliance. It exists whether or not you run the fan or air fryer.

For appliance comparisons, the unit rate is therefore the useful number.

Could a different tariff change the calculation?

Absolutely.

The 26.11p/kWh figure is useful for a standard comparison, but your own electricity rate may differ.

Some tariffs offer cheaper electricity during particular periods, while Economy 7 and other multi-rate arrangements have different rates at different times. Ofgem confirms that multi-rate tariffs can have separate peak and off-peak electricity prices.

This can matter for flexible appliances.

If your tariff gives you significantly cheaper electricity overnight, for example, using a tumble dryer during an appropriate off-peak period could reduce its running cost.

You should always check the terms of your specific tariff rather than assuming an off-peak period automatically applies.

Is an air fryer always cheaper than an electric oven?

No.

It can be cheaper for small portions because it may heat a smaller cooking chamber and finish the food quickly.

But there are situations where an oven may be more practical and potentially competitive, particularly when cooking a large amount of food at once.

The fairest comparison is:

Cost per meal = electricity consumed for the entire cooking process × your unit rate

Compare the actual kWh used rather than relying on the appliance category.

What is the best way to measure real electricity use?

If you want a precise household answer, a plug-in energy monitor can measure compatible appliances.

This can be especially useful for an air fryer or fan because you can see how consumption changes between settings.

For a tumble dryer, the appliance's own energy information and a suitable electricity monitor can help you understand the difference between programmes.

You may discover that the number on the specification sheet does not tell the whole story.

That is because rated power describes the electrical load under particular conditions, while your bill reflects the total energy consumed over time.

What should you check before buying a new appliance?

Running cost should be part of the purchase decision, not an afterthought.

For an air fryer, consider:

• Capacity
• Rated power
• Cooking time
• Whether one or two baskets are useful
• How often you will use it

For a fan, consider:

• Rated wattage
• Speed settings
• Timer function
• Airflow
• Noise

For a tumble dryer, look particularly closely at:

• Energy consumption per cycle
• Dryer technology
• Capacity
• Programme duration
• Sensor drying
• Maintenance requirements
• Purchase price

Government energy-labelling guidance requires relevant energy information to be displayed and supported by product information, while current tumble-dryer documentation includes energy consumption and programme details.

What does the future look like for appliance running costs?

The biggest change for households is likely to be the continuing shift toward more efficient appliances and smarter electricity use.

Tumble dryers are a particularly clear example. UK government work on future ecodesign requirements has focused on improving efficiency and moving the market towards heat-pump technology.

At the same time, electricity tariffs are becoming more varied. Smart meters can enable suppliers to offer time-of-use pricing, giving households more opportunity to move flexible electricity consumption away from expensive periods.

That could make appliances such as tumble dryers increasingly relevant to household energy management.

However, future electricity prices cannot be predicted with certainty. Ofgem reviews the price cap every three months, and it has scheduled the next announcement for the 1 October to 31 December 2026 period by 26 August 2026.

The sensible long-term approach is therefore not to base a household budget on one forecast. Instead, understand your appliance's kWh consumption and multiply it by whatever unit rate you actually pay.

Key Insights

• An electric fan is normally very cheap to run because its power consumption is relatively low. A 50W fan used for eight hours costs roughly 10p at 26.11p/kWh.
• Air fryers use considerably more power per hour than fans, but their short cooking times can keep the cost of an individual meal relatively low.
• Tumble dryers generally deserve the most attention when cutting electricity use, particularly older vented and conventional condenser machines.
• Heat-pump tumble dryers can have much lower running costs, although their higher purchase prices need to be considered over the expected ownership period.
• Wattage alone does not determine your bill. Usage time and actual energy consumption are equally important.
• The best calculation uses your own tariff, not a generic national figure.
• For flexible appliances, tariff timing can matter. A cheaper off-peak electricity period can reduce the cost of suitable loads.
• When replacing an appliance, compare purchase price and lifetime running cost together, rather than automatically choosing the cheapest machine upfront.

FAQ

How much does it cost to run a 50W fan for eight hours?

At an electricity rate of 26.11p/kWh, a 50W fan running for eight hours uses 0.4kWh and costs approximately 10p. Your actual cost depends on the fan's power consumption and your electricity unit rate.

How much does a fan cost to run overnight?

A typical small fan may cost roughly 8p to 20p for eight hours, depending on its wattage and your electricity price. A lower-powered fan will generally cost less, while larger high-powered models can use more electricity.

Is it expensive to leave an electric fan on all night?

Usually not. Fans generally use relatively little electricity compared with heating appliances, ovens and tumble dryers. Even an eight-hour period can cost only a small amount for a modest-wattage fan.

How much does an air fryer cost to run for 30 minutes?

A 1.8kW air fryer operating for 30 minutes would theoretically use 0.9kWh. At 26.11p/kWh, that is about 24p. Actual consumption can be lower if the heating element cycles rather than operating continuously.

Does an air fryer use less electricity than an oven?

It often can for small meals because an air fryer may heat a smaller space and cook food faster. However, it is not automatically cheaper in every situation. The fairest comparison is the total kWh consumed to cook the same food.

Is an air fryer cheaper to run than a microwave?

There is no universal answer because cooking times and power consumption vary. A microwave is often very efficient for reheating or quickly cooking certain foods, while an air fryer may be better suited to foods requiring dry, circulating heat.

How much electricity does a tumble dryer use?

It varies substantially by dryer type, model, load and programme. Conventional dryers can use several kWh per cycle, while efficient heat-pump models can use considerably less. The product's stated energy consumption is the best starting point.

Which tumble dryer is cheapest to run?

Heat-pump tumble dryers are generally the cheapest type to run among common electric tumble dryers. Which?'s July 2026 testing found a tested heat-pump model with annual energy costs substantially below the tested vented and condenser alternatives.

How much does a tumble dryer cost for one hour?

There is no fixed hourly cost because dryers cycle their heating systems and programmes vary. As an illustration, a continuous 2.5kW load would cost about 65p per hour at 26.11p/kWh, but a real drying cycle may consume less or more depending on its operation.

Is a heat-pump tumble dryer worth the extra money?

It can be, particularly if you use your dryer frequently. The higher purchase price may be offset by lower electricity consumption over several years. Occasional users may take longer to recover the additional upfront cost.

Does drying clothes on a faster spin reduce tumble-dryer costs?

It can. A higher washing-machine spin speed can remove more water before drying, meaning the tumble dryer may have less moisture to remove. The appropriate setting depends on the fabrics and the washing machine.

Does filling a tumble dryer save electricity?

Using a suitable full load can make each drying cycle more productive, but the drum should never be overloaded. Follow the manufacturer's capacity and programme guidance because poor airflow can make drying less effective.

Is it cheaper to use an air fryer than a full-size oven?

For many small meals, it can be. The smaller cooking chamber and shorter cooking period may reduce electricity consumption. For large meals requiring several air-fryer batches, the advantage may become smaller or disappear.

Can an electricity tariff change appliance running costs?

Yes. Your cost is directly linked to the electricity unit rate you pay. Multi-rate and time-of-use tariffs can also provide cheaper electricity during selected periods, potentially making flexible appliance use less expensive.

When will the next UK energy price cap be announced?

Ofgem says the next price-cap period, covering 1 October to 31 December 2026, will be announced by 26 August 2026, although it may publish the figure earlier if necessary.

Final Thoughts

The cheapest appliance to run is not necessarily the appliance with the lowest wattage, and the most powerful appliance is not automatically the one that costs the most every time you use it.

What matters is the combination of power, time, frequency and electricity price.

For most households, an electric fan is relatively inexpensive because it uses little power. An air fryer consumes more electricity while operating, but short cooking times can keep the cost of individual meals modest. The tumble dryer is where much larger differences can emerge, especially between conventional models and modern heat-pump machines.

The most useful habit is to stop guessing and calculate the kWh.

Check the appliance rating or energy information, estimate how long you actually use it, and multiply that consumption by the unit rate on your electricity tariff.

If you're considering replacing an appliance, compare both its purchase price and expected running cost.

At the current July–September 2026 Ofgem benchmark of 26.11p/kWh, even small changes in appliance use become easy to quantify. And once you know the numbers, you can focus your money-saving efforts where they will actually make a difference rather than worrying about every appliance equally.

Disclaimer: The information provided in this article is for general informational and research purposes only. Company details, features, services, and market positions may change over time. Readers are advised to visit official company websites and conduct independent research before making any business decisions or purchasing services.