Air Fryer vs Oven Cost Calculator
Compare the electricity running costs of an air fryer versus a conventional oven based on current UK energy prices. Enter your appliance wattages, cooking times, and usage frequency to see the cost per use, weekly savings, and annual savings of switching to an air fryer for everyday cooking.
How Air Fryer vs Oven Cost Calculator Works
Compare running costs of an air fryer versus a conventional oven in the UK. Calculate per-use cost, weekly savings, and annual electricity savings. Enter your values into the form above and the calculator processes them instantly in your browser — no data is sent to any server.
Why Air Fryers Are Cheaper to Run Than Ovens
The air fryer has become one of the most popular kitchen appliances in UK households, and for good reason. Beyond the convenience and speed of cooking, air fryers offer significant energy savings compared to conventional ovens. The savings come from two key factors: lower wattage and shorter cooking times. A typical air fryer consumes between 1,000 and 1,800 watts of power, while a conventional electric oven draws between 2,000 and 3,000 watts. More importantly, air fryers cook food significantly faster than ovens because they are smaller, reach cooking temperature almost instantly without a lengthy preheat period, and circulate hot air more efficiently around the food. A meal that takes 40 minutes in a conventional oven might only require 20 minutes in an air fryer, meaning the air fryer runs for half the time at roughly half the power, resulting in approximately 75% less energy consumption per cooking session.
With UK electricity prices remaining elevated following the energy crisis, the cost savings from using an air fryer instead of an oven have become meaningful for household budgets. Under the current Ofgem energy price cap, the average unit rate for electricity in the UK is approximately 24.5 pence per kilowatt-hour (kWh). At this rate, running a 2,500-watt oven for 40 minutes costs approximately 27 pence, while running a 1,500-watt air fryer for 20 minutes costs just 8 pence. If a household uses an oven five times per week and switches those sessions to an air fryer, the annual saving could be close to 50 pounds. While this may not seem transformative, it adds up year after year and contributes to a broader strategy of reducing household energy consumption. The environmental benefits are equally significant, as lower energy consumption translates directly to reduced carbon emissions.
Appliance Running Cost Formulas
Energy Per Use (kWh): Wattage × Cooking Minutes ÷ 60 ÷ 1000
Cost Per Use: Energy Per Use × Electricity Rate (p/kWh)
Weekly Cost: Cost Per Use × Times Per Week
Annual Cost: Weekly Cost × 52
Annual Savings: Oven Annual Cost − Air Fryer Annual Cost
Where:
- Wattage = Power consumption of the appliance in watts
- Cooking Minutes = Duration of each cooking session
- Electricity Rate = Cost per kWh (UK average ~24.5p/kWh)
- Times Per Week = Number of cooking sessions per week
Understanding Appliance Wattage and Cooking Times
The wattage of your air fryer and oven can usually be found on a label on the back or bottom of the appliance, or in the product manual. Most air fryers sold in the UK range from 1,000 watts for smaller models to 1,800 watts for larger dual-basket models. Conventional electric ovens typically range from 2,000 watts for smaller single ovens to 3,000 watts or more for large double ovens. It is worth noting that ovens do not run at full wattage continuously during cooking. Once the oven reaches the set temperature, the heating element cycles on and off to maintain the temperature, meaning the actual energy consumption may be around 60 to 70 percent of the rated wattage over the cooking period. Air fryers, being smaller and more efficient, tend to run closer to their rated wattage throughout the cooking period because they lose less heat and recover temperature more quickly when the door is opened.
UK Energy Prices and the Price Cap
UK electricity prices are regulated by Ofgem through the energy price cap, which sets the maximum unit rate that default tariff customers can be charged. As of the current quarter, the average electricity unit rate under the price cap is approximately 24.5 pence per kWh, although this varies by region and payment method. Customers on fixed-rate tariffs may pay more or less than this cap depending on when they fixed their deal. It is important to use your actual electricity rate when calculating running costs, as even small differences in the unit rate can significantly affect the annual savings. You can find your exact unit rate on your electricity bill or by checking your energy supplier online account. Some customers on Economy 7 or similar time-of-use tariffs pay different rates at different times of day, with cheaper overnight rates typically between 7 and 12 pence per kWh.
Other Factors to Consider
While this calculator focuses on direct electricity costs, there are other factors to consider when comparing air fryers and ovens. Air fryers have a limited capacity compared to ovens, so cooking for larger families may require multiple batches, which reduces the energy saving. Not all foods cook well in an air fryer; large roasts, baking multiple trays of biscuits, and dishes requiring steam or a water bath are better suited to a conventional oven. The purchase price of an air fryer, typically 40 to 200 pounds, should also be factored in. At an average saving of roughly one pound per week, a 100-pound air fryer would pay for itself in about two years through energy savings alone. Additionally, air fryers produce less residual heat than ovens, which can be beneficial in summer but means you lose the warming effect that an oven provides to your kitchen in winter, potentially increasing your heating costs marginally during colder months.
Example Comparison
1,500W Air Fryer (20 mins) vs 2,500W Oven (40 mins), 5 times/week
Comparing a typical air fryer and oven used 5 times per week at 24.5p/kWh.
- Air Fryer: 1500W × 20 mins ÷ 60 ÷ 1000 = 0.50 kWh per use
- Air Fryer Cost: 0.50 × 24.5p = 12.3p per use
- Oven: 2500W × 40 mins ÷ 60 ÷ 1000 = 1.67 kWh per use
- Oven Cost: 1.67 × 24.5p = 40.8p per use
- Weekly Saving: (40.8p − 12.3p) × 5 = £1.43
- Annual Saving: £1.43 × 52 = £74.10
Frequently Asked Questions
How much does it cost to run an air fryer in the UK?
The cost of running an air fryer depends on its wattage, how long you use it, and your electricity rate. A typical 1,500-watt air fryer used for 20 minutes costs approximately 12 pence per session at the average UK electricity rate of 24.5 pence per kWh. If you use your air fryer five times per week, the weekly running cost would be around 61 pence, or approximately 31.72 pounds per year. Smaller air fryers with lower wattages will cost less, while larger dual-basket models with higher wattages may cost slightly more. The key advantage is that air fryers cook faster and use less energy than conventional ovens for the same meals.
How much electricity does a conventional oven use?
A conventional electric oven typically uses between 2,000 and 3,000 watts of power. However, the oven does not run at full wattage continuously. Once it reaches the set temperature, the heating element cycles on and off, meaning actual consumption is typically 60 to 70 percent of the rated wattage over a cooking session. A 2,500-watt oven running for 40 minutes consumes approximately 1.67 kWh, costing around 41 pence at the UK average rate. Ovens also require preheating time, which adds to the total energy consumption. A typical preheat cycle takes 10 to 15 minutes and can add an additional 5 to 10 pence to each cooking session.
What is the current UK electricity rate?
The UK electricity rate is regulated by Ofgem through the energy price cap. As of the current period, the average unit rate under the price cap is approximately 24.5 pence per kWh for standard variable tariff customers. However, actual rates vary by region, payment method, and tariff type. Customers who pay by direct debit typically get the best rates, while prepayment meter customers may pay slightly more. Customers on fixed-rate deals may pay more or less depending on when they fixed. You can find your exact unit rate on your electricity bill or online account. This calculator uses the UK average by default but allows you to enter your actual rate for more accurate results.
How long does it take for an air fryer to pay for itself?
The payback period for an air fryer depends on its purchase price and how much you save on electricity by using it instead of an oven. A mid-range air fryer costing around 80 pounds, used five times per week instead of a conventional oven, can save approximately 50 to 75 pounds per year in electricity costs. At this rate, the air fryer would pay for itself in about 12 to 18 months. More expensive models costing 150 to 200 pounds would take longer, roughly two to three years. Budget models priced at 40 to 60 pounds could pay for themselves in as little as six to nine months. The payback period shortens if you use the air fryer more frequently or if electricity prices increase.
Can an air fryer replace an oven completely?
An air fryer cannot completely replace a conventional oven for all cooking tasks. Air fryers excel at cooking chips, chicken pieces, vegetables, fish fillets, and reheating leftovers, often producing results as good as or better than an oven. However, they have limited capacity, making them unsuitable for cooking large roasts, multiple trays of baked goods, or meals for large families in a single batch. Dishes that require steam, a water bath, or very low and slow cooking are also better suited to a conventional oven. Most households find that an air fryer handles 60 to 80 percent of their everyday cooking needs, with the oven reserved for special occasions, large batch cooking, and baking. Using both appliances strategically maximises convenience while minimising energy costs.