Compare air fryer and electric or gas oven energy costs for one cook and your usual weekly cooking schedule.
Advanced options
Table of contents
How to use our Air Fryer vs Oven Cost Calculator
- Choose your Oven fuel type. Pick Electric oven for an electric oven or Gas oven for a natural-gas oven.
- Enter the appliance label ratings and cooking times for the same food. Use Air fryer power and either Electric oven power or Gas oven use rate.
- Enter your utility prices from your bills: Electricity price, plus Natural gas price if you chose a gas oven.
- Open Advanced options to include preheat time and Cooks per week for the yearly comparison, then select Calculate.
- Check that the cooking times include the same job and that the signed Air fryer cost change per cook matches its note: a positive amount means the air fryer costs less.
Definitions
Watt: A unit of electrical power. Appliance labels often list power in watts.
kWh: Kilowatt-hour, the electricity unit commonly used on utility bills. It combines power and time used.
BTU per hour: A gas oven's fuel-use rate. The calculator uses it with cooking time to estimate gas used.
Therm: A natural-gas billing unit equal to 100,000 BTU.
Preheat time: The time an appliance runs before food starts cooking. Enter it separately so it is counted once.
Air fryer cost change per cook: Oven energy cost minus air fryer energy cost. A positive number means the air fryer costs less; a negative number means the oven costs less.
Common mistakes and quick fixes
Mistake: Entering the air fryer temperature instead of its watt rating in Air fryer power.
Fix: Use the watts listed on the appliance label or in the manual.
Mistake: Counting preheat inside Oven cook time and again in Oven preheat time.
Fix: Put active cooking in Oven cook time and only the extra warm-up time in Oven preheat time.
Mistake: Using an electric oven wattage after choosing Gas oven under Oven fuel type.
Fix: Enter the label value in Gas oven use rate and your bill price in Natural gas price.
Mistake: Entering a full utility bill total as Electricity price or Natural gas price.
Fix: Enter the per-kWh electricity charge or per-therm gas charge, not the whole bill amount.
Mistake: Reading a negative Air fryer cost change per cook as savings.
Fix: A negative value means the selected oven costs less under the numbers you entered.
Mistake: Treating Yearly air fryer cost change as a prediction when Cooks per week is only a guess.
Fix: Use a typical weekly number, then try a higher and lower number to see how much the yearly amount changes.
Limitations & Key Assumptions / Boundary Conditions
- This estimates energy or fuel cost from the ratings, times, and utility prices you enter. It does not measure actual electricity or gas use.
- Appliance power and gas input can cycle up and down during cooking. A label rating may not equal the average rate for a specific recipe.
- Only the entered cooking and preheat times are counted. Warm-up behavior, door opening, standby use, and cooling are not included.
- For a fair comparison, enter times for the same amount of food. The calculator does not adjust for batch size, servings, or cooking results.
- The electric comparison uses the entered electricity price. The gas comparison uses the entered natural-gas price and assumes 1 therm equals 100,000 BTU.
- The yearly amount assumes the entered Cooks per week repeats for 52 weeks. A zero weekly value makes the yearly change $0.
Methodology
Energy and cost calculation
The calculator converts each appliance's run time from minutes to hours. For the air fryer, it converts watts to kilowatts and multiplies by total cook plus preheat time.
air fryer kWh = (air fryer watts / 1000) x ((air fryer cook minutes + air fryer preheat minutes) / 60)
air fryer cost = air fryer kWh x electricity price per kWh
For an electric oven, the same electricity method uses Electric oven power and the oven's total cook plus preheat time.
electric oven cost = (electric oven watts / 1000) x ((oven cook minutes + oven preheat minutes) / 60) x electricity price per kWh
For a gas oven, the entered BTU-per-hour rate is multiplied by total oven hours, then divided by 100,000 to convert BTU to therms.
gas oven cost = (gas BTU per hour x ((oven cook minutes + oven preheat minutes) / 60) / 100000) x gas price per therm
Comparison and yearly amount
The cost change stays signed so it can show either appliance as cheaper.
air fryer cost change per cook = oven cost per cook - air fryer cost per cook
yearly air fryer cost change = cost change per cook x cooks per week x 52
Example: a 1,500-watt air fryer used for 20 minutes uses 0.5 kWh. At $0.15 per kWh, its energy cost is $0.075, or 7.5 cents, before rounding for display. If an electric oven uses 2,400 watts for 40 minutes including preheat, it uses 1.6 kWh and costs $0.24 at that same price. The air fryer cost change is $0.165 per cook.
Calculation boundaries
All active numeric entries must be finite and zero or greater. In electric mode, gas entries are ignored. In gas mode, Electric oven power is ignored. The calculator displays costs to cents, but calculations use the unrounded values first.