At the current price cap rate of 26.11p per kWh, a typical air fryer costs about 12.9p per use, which is £47.04 a year on the usage below.
Where that number comes from
Across the range of powers for this appliance class, one use costs between 10.3p and 18.1p. Your own figure is on the rating plate, usually on the back or inside the door, and it is the only one that is true for you.
Cheaper than an oven mostly because it is smaller and faster, not because it is more efficient per watt. For one or two portions the difference is real.
What does it cost to run?
Change any of these. The rate is the current price cap average, but yours is on your bill and is the one that matters.
Every other appliance
See the full table at today's rate, or what the price cap is doing next.