Question & answer
Does an Air Fryer Use More Electricity Than a Microwave?
Per minute, usually yes, going by the figures the companies publish. Air fry jobs also tend to run longer. But you rarely cook the same food both ways, and we found no measured comparison. A simple sum gives you a real answer for your own model and your own dinner.
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The short answer
Per minute, usually yes. Panasonic's sister-model manual lists 1,110 W for its microwave and 1,350 W for its heater, and air fry jobs tend to run longer. We found no measured food-by-food comparison. For a real answer, multiply your model's input watts by the hours it runs, then divide by 1,000 to get kWh.
Energy depends on two things: how many watts it draws, and for how long. The companies publish the watts. Nobody we found has published the minutes for the same food in both modes. More short answers are on the questions page.
What do the companies publish?
| Appliance | Microwave input | Heater or air fry |
|---|---|---|
| Panasonic NN-CD87 (sister of the HomeChef) | 1,110 W | 1,350 W |
| Breville BMO870 | 1200 W | 1400 W convection, 1100 W grill |
| Ninja Crispi MW101 | Not in the US documents we read | 1700 W air fry |
| Ninja FN101 glass air fryer (no microwave) | None | 1500 W air fry |
| Typical microwave ovens | 750 to 1100 W | None |
The last row is from the Virginia Tech guide. On the Breville, the grill line is even lower than the microwave. So the gap between modes depends on the model. Panasonic's "1000 W" is cooking power, not input. See the wattage guide.
Why do minutes matter as much as watts?
Microwave jobs are short. Panasonic's sister-model chart gives 4 to 5 minutes at 1000 W for a chilled plate of homemade food. Its air fry chart runs 20 to 30 minutes for 8 to 16 oz of thin frozen fries. Those are different foods doing different jobs. You wouldn't microwave fries you want crisp, or air-fry a mug of soup. See air fryer versus microwave.
The FDA says microwave cooking can be more energy efficient than conventional cooking, because food cooks faster and the energy heats only the food. That comparison is with a conventional oven. It doesn't mention air fryers.
Preheating adds time on some models. Breville's air fry preheats for 3 minutes. Panasonic's sister-model manual says its air fry mode needs no preheat.
How do I work it out for my dinner?
Find the input watts for the mode
Look in the manual's specifications or on the label. Use the line for the mode you run, not the headline microwave number.Note the running time in hours
Use your real cooking time, including any preheat. Divide minutes by 60.Do the sum
Virginia Tech's formula: watts × hours ÷ 1,000 = kWh. Treat it as an upper limit.Repeat for the other mode, then price it
Multiply the kWh by the rate per kWh on your utility bill.
We left out sample results on purpose. A sum built on someone else's watts and minutes won't match your kitchen.
What about "Save Electricity 50%"?
Toshiba's ML2-EC10SA page has a heading that says "Save Electricity 50%". It gives no baseline and no footnote on the page we read, so we can't say what the 50% is compared with. Don't use it to compare models.
Should electricity use decide what I buy?
No. We found no measured figures to rank combos or basket fryers by energy, so choose on fit and on what you cook. Power matters more for your circuit than your bill. 1700 W at 120 V is about 14.2 A (computed), near the limit of a 15 A circuit. See circuits and amps.
Want clear numbers by mode? The Panasonic's sister-model manual gives them. It needs headroom and a separate circuit. For other kitchens, see the best combos, or whether a combo is worth it.
Panasonic
Panasonic HomeChef 4-in-1
The combo with the clearest manual and a pick from Good Housekeeping.
Why it fits here: Its sister model's manual lists input watts and amps by mode, so you can do this sum without guessing.
Best for: kitchens with open space above the counter, or no wall cabinet over the spot
- Capacity
- 1.2 cu ft
- Microwave watts
- 1000 W, inverter
- Outer size (W × D × H)
- 22.06 × 17.75 × 13.52 in
- Functions
- Microwave, air fry, convection bake, broil
- True microwave
- Yes
- Price class
- Premium
- Size as stated by
- Sister model. The listing names the NN-CV87QS. Size matches Panasonic's NN-CD87KS sheet and Abt's NN-CV87QS page; the manual we read is for the NN-CD87.
- Named best overall in Good Housekeeping's April 2026 roundup, which linked this listing
- Inverter microwave at 1000 W, with 1.2 cu ft inside
- The sister model's manual is clear about the space it needs, racks and foil
- 13.5 in tall plus the 6 in top space in the NN-CD87 manual is 19.5 in (computed), more than a common 18 in gap
- That manual asks for its own 15 A or 20 A, 120 V circuit
- Premium price class, and the widest body in this group
Quick questions
Is it cheaper to reheat food in the microwave or the air fryer?
For a plate of leftovers, the microwave likely uses less, because the times are short. We have no measured figures to prove it. Work out the kWh for each with your own watts and minutes, then multiply by the rate on your bill.
Does a microwave air fryer combo use more electricity than a basket air fryer?
We found no measured comparison. Watts alone don't settle it, because cooking time and size differ too. Ninja rates its MW101 at 1700 W for air frying and its FN101 glass air fryer at 1500 W, but that says nothing about how long each takes.
Where do I find the input watts for my model?
Check the specifications page in the manual, then the label on the appliance. A Virginia Tech guide says the watts are usually stamped on the back or bottom, or on the nameplate. Don't use the headline microwave number. That is usually output.
Does the wattage on the label mean it always draws that much?
Not always. The Virginia Tech guide says the actual power depends on the setting. So treat a sum based on the label as an upper limit. A lower power level can use less.
Where this comes from
Keep reading
- ExplainerMicrowave wattageMicrowave wattage explained in plain words: output is cooking power, input is what it draws, and why 1700 W on some combos is an air fry number.
- ComparisonAir fryer vs microwaveAir fryer vs microwave: hot air crisps, microwaves heat fast. See which wins for reheating, defrosting and texture, and when a combo fits.
- ExplainerCircuit and ampsSome microwave air fryers need their own circuit. The amps we could confirm, what Panasonic, Breville, GE and Sharp say, and what they say about extension cords.
- Question & answerAre Microwave Air Fryer Combos Worth It? Who Should Buy OneAre microwave air fryer combos any good? Yes if counter space matters most. Here is who should buy one, who should skip it, and what to check first.
Who is behind this
microwaveairfryercombo.com Editorial Team
Fit checks and buying advice
We are the editorial team at microwaveairfryercombo.com. We read spec sheets, owner's manuals, retailer data and published tests, then turn them into plain answers about what fits your kitchen and what each combo can do. We do not run lab tests, and we say so openly.
- Spec sheets and manuals read
- Sources on every page
- No own lab tests, stated openly
- Publisher details in the imprint