Keep Above
Air fryer or oven
The same dinner can come out of an air fryer or the oven, and the two draw very different power for different lengths of time. Put in each one's rated watts from its rating plate, how many minutes it would run for this kind of cooking, and your own price per kWh from your power bill — the page lands both on a cost per use, per week and per year. No winner is declared; the figures are yours.
On the rating plate or label
On the rating plate or label
Put in your price per kWh from your power bill, then each side's rated power and how long one use runs. Nothing here is read from your accounts, and nothing is saved.
| Option A | Option B | |
|---|---|---|
| Rated power | — | — |
| Energy one use takes | — | — |
| Cost of one use | — | — |
| Cost a week | — | — |
| Energy a year | — | — |
| Cost a month | — | — |
| Cost a year | — | — |
This is one of the tools built into Keep Above
Keep Above is a budgeting app where you enter your bills and income and it works out the balance you need to keep — so you can see what's safe to spend. No bank connection, no ads on your data.
About this calculator
What about cooking in batches?
An air fryer's basket is smaller than an oven cavity, so a meal that fits the oven in one round can take two or three rounds the other way. The minutes field is per use, so the honest entry is the total minutes it would actually run for this meal — batches included.
Why is the rated power a ceiling, not an average?
A rating plate states the most an appliance draws, not what it averages. Anything with a thermostat — an oven, a heater, an iron — cycles on and off, so its real draw over a session can sit well under the rating. The figures here are what each side would cost at full rated power for the whole time: the honest upper end, not a meter reading.
Where do I find the wattage and the kWh price?
The wattage is on the appliance's rating plate or sticker — usually near the plug, the door frame or the base — as watts (W) or kilowatts (kW; 1 kW is 1 000 W). Manuals and product pages list it too. The price per kWh is on your own electricity bill, and this page never assumes one for you.
Why do both sides share one uses-a-week figure?
Because the two sides are two ways of doing the same job, so the job happens the same number of times either way. What can differ is how long one session runs — that is why each side has its own minutes.