Air Fryer vs Convection Oven

The two appliances cook the same way. A fan circulates hot air, breaking up the cooler layer of air that sits next to food, so food cooks faster than in a still oven. Wikipedia describes air fryers as small countertop convection ovens that are smaller and give off less heat to the room.

Convection ovens are usually set lower than a non-fan oven, often about 20 degrees Celsius or 36 Fahrenheit, to avoid overcooking the outside. The cost question comes down to watts and minutes. The calculator uses EIA's 17.3 cents per kilowatt-hour, with wattages and times you can change to match your own appliances.

Air Fryer vs Convection Oven side by side

Last verified October 2026. Typical values; individual animals, products and local prices vary.

Which one fits you

Air Fryer

• You usually cook for one or two people and want small batches to finish quickly.
• You want less heat released into a small kitchen during summer.
• You use a countertop appliance several times a week and want to avoid heating a full oven.
• You mainly reheat or crisp small portions of food.

Convection Oven

• You cook for a family or a crowd and need a large cavity.
• You already own an oven with a convection setting and do not want another appliance.
• You bake on multiple racks or roast full-size cuts that will not fit a small basket.
• You want one appliance for both everyday meals and holiday cooking.

How this works

This page compares the two appliances using descriptions of how fan cooking works and EIA's national electricity price. Published testing data on household air fryer energy use is limited, so the calculator is built on watts and minutes you can verify yourself.

The calculator treats the oven as drawing its full rated power for the whole time. Real ovens cycle their elements on and off, so actual use may be lower. It leaves out the purchase price of an oven and any accessory costs.

Electricity is EIA's 2025 US residential average of 17.3 cents per kWh. Wattages (1,500 W air fryer, 2,400 W average oven draw), cook times and the $100 air fryer price are planning assumptions, not sourced figures, so replace them with your appliance label and your own cooking times.

Where these numbers come from

The figures and defaults on this page are based on:

• Wikipedia: Air fryer, Air fryers are smaller convection-style cookers that give off less room heat. (checked October 2026)
• Wikipedia: Convection oven, Fan operation, lower temperature setting and faster cooking. (checked October 2026)
• EIA: Electricity Prices and Factors Affecting Prices, US residential electricity price of 17.30 cents per kWh in 2025. (checked October 2026)

Planning estimates. Wattage and cook time on your own appliances decide the real cost.