Explainer
Microwave Wattage Explained: Which Number Counts
Microwave wattage means output, the power that reaches your food. Compare that number. Input is what the appliance draws from the wall, and it is higher. The combos here run from 900 to 1100 W of output. A 1700 W figure on the Ninja MW101 is for air frying, not microwaving.
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The short version
Compare microwave output, which is 900 to 1100 W among these combos. Input is higher: Panasonic's NN-CD87 manual lists 1,110 W input for 1000 W of cooking power. Air fry and convection watts are a separate number, which is where figures like 1450 W and 1700 W come from. For varied use, Good Housekeeping suggests at least 1,000 W.
A combo can list several power numbers on one sheet, and listings often show the biggest. New here? Start with the guide to microwave air fryer combos.
What are the three numbers?
- Output
- Microwave power reaching the food; the number to compare
- Input
- Power drawn from the wall in microwave mode; higher than output
- Heater
- Air fry, convection or broil watts; a separate system
Panasonic's manual shows it clearly. For the NN-CD87, the sister model of the HomeChef we list, it gives 1000 W of microwave cooking power and 1,110 W of power consumption at 9.5 A. The heater has its own lines: 1,300 W of cooking power and 1,350 W of consumption at 11.4 A.
What do these combos say?
| Model | Microwave output | Heater figure |
|---|---|---|
| Sharp SMC0985KS | 900 W | 1450 W for convection and air fry |
| Toshiba ML2-EC10SA | 1000 W | Not stated |
| Panasonic NN-CD87 (sister model) | 1000 W | 1,350 W consumption |
| Ninja Crispi MW101 | 1000 W as listed | 1700 W air fry, per Ninja |
| Breville BMO870 | 1100 W | 1400 W convection input |
For the Breville we used the specifications section of a copy of its US manual, not the whole manual.
Where does 1700 W come from?
Two different things get mixed up.
Ninja. The Crispi MW101 is rated 1700 W for air frying and listed at 1000 W as a microwave. Ninja's "frozen to crispy" line compares air fry watts (1700 W against 1500 W on the FN101). That is a comparison of watts, not a cooking test. The FN101 is a glass air fryer with no microwave. See the Ninja Crispi Microwave page.
Breville. Some listings and AI answers quote 1700 W for the Combi Wave. That is not its microwave power. We do not know where the number started.
Does a 100 W gap matter?
Not much. Panasonic marks its 1000 W as measured by an IEC test. A 2017 message in a microwave trade group's newsletter says the test is voluntary and that output varies by at least 15% either way within one production run. By that account, a "1000 W" oven could be anywhere from 850 to 1150 W. That is one trade group's view, and we did not read the standard. It is still a reason not to pick a model for a 50 W gap.
How do watts change my cooking time?
Higher output heats faster. Package times are written for a certain wattage. A simple estimate: time × package watts ÷ your watts.
| Package says | Your output | Estimate (computed) |
|---|---|---|
| 3 min at 1100 W | 1000 W | About 3 min 18 s |
| 3 min at 1100 W | 900 W | About 3 min 40 s |
Treat that as a starting point. Start with the shorter time and add more, and check that food is hot all the way through. Low power settings are something else. An inverter (a microwave that adjusts its power smoothly) controls low power better. We would not promise more even heating from it.
Watts and your circuit
Watts also tell you what your outlet has to carry. 1700 W at 120 V is about 14.2 A (computed), close to the limit of a 15 A circuit. Panasonic's NN-CD87 manual asks for its own 15 A or 20 A, 120 V circuit. Sharp's sheet lists a 120 V, 20 A power source. If your circuit is unclear, ask an electrician. See circuits and amps and electricity use.
- Circuit and ampsPlan on it. Panasonic's NN-CD87 manual requires a separate 15 A or 20 A, 120 V grounded circuit, and Breville recommends its own. A 1700 W air fry rating at 120 V is about 14.2 A, close to the limit of a 15 A circuit. Plug straight into a wall outlet, follow your manual, and ask a qualified electrician if you are unsure.
- 1000 watt microwavesBuy the Toshiba ML2-EC10SA: Toshiba says 1000 W and 1.0 cu ft (the size printed on the box), and it is only 11.8 in tall. Pick the Toshiba ML-EC42P if you want more room inside. Pick the Panasonic HomeChef if you want an inverter and have headroom. If you never air-fry, you do not need a combo.
Which wattage should I choose?
Good Housekeeping suggests at least 1,000 W for varied use. That points to 1000 W as a sensible middle. A 900 W model makes sense when counter space comes first, like the small combos.
Toshiba
Toshiba ML2-EC10SA
A 1.0 cu ft combo that is low enough for most counters under cabinets.
Why it fits here: A 1000 W microwave at 1.0 cu ft and only 11.8 in tall, per Toshiba. You do not trade power for a low body.
Best for: most family kitchens with wall cabinets over the counter
- Capacity
- 1.0 cu ft
- Microwave watts
- 1000 W
- Outer size (W × D × H)
- 20.6 × 18 × 11.8 in
- Functions
- 8-in-1 per Toshiba, including air fry and defrost
- True microwave
- Yes
- Price class
- Mid-range
- Size as stated by
- Maker.
- 11.8 in tall, says Toshiba, among the lowest here at 1.0 cu ft
- 1000 W microwave and air fry in one oven space
- 12.4 in turntable and 10 air fry presets, says Toshiba
- Toshiba says 18 in deep, the Amazon listing says 16.4 in. Measure with the bigger number
- We only saw the space it needs in a third-party summary. Check the printed manual
- A round turntable limits how wide a pan can turn
Quick questions
What wattage microwave should I buy?
For varied cooking, Good Housekeeping suggests at least 1,000 W. A 900 W compact model still heats food, only a bit slower, and can be the right trade if counter space is short. A gap of 50 or 100 W between brands tells you little.
Is a higher wattage microwave better?
It heats faster, but it is not automatically better. It can overcook small portions, and it does not heat more evenly. Treat watts as one point beside size, fit and controls.
Where do I find my microwave's wattage?
Check the manual under specifications, the label on the appliance, or the company's page. If a number looks too high for a microwave, it may be an input or air fry rating.
Why does my combo say 1700 W?
On the Ninja Crispi MW101, 1700 W is Ninja's air fry rating. The microwave is listed at 1000 W. Some listings also attach 1700 W to the Breville Combi Wave. The specifications in a copy of its US manual show 1100 W output and 1200 W input, and no 1700 W.
Where this comes from
- Panasonic: NN-CD87 owner's manual
- Breville: BMO870 instruction book, copy hosted by Williams-Sonoma
- SharkNinja: news release on the Ninja Crispi Microwave, 16 July 2026
- Sharp: SMC0985KS product sheet (hosted by a retailer)
- International Microwave Power Institute: The Wave newsletter, January/February 2017, President's Message
- Good Housekeeping via AOL: best microwave air fryer combos
Keep reading
- 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.
- Model profileBreville Combi WaveThe Breville Combi Wave 3-in-1 has 1100 W of microwave output, not 1700 W, says its manual. See its size, the 12 in top space it needs and who it suits.
- Model profileNinja Crispi MicrowaveThe Ninja Crispi Microwave MW101 is a true combo with a flat tray and glass basket. Its listed size, what Ninja's claims compare against, and who should skip it.
- ComparisonBest combosThe best microwave air fryer combo for most kitchens is the Toshiba ML2-EC10SA. See which pick fits a small kitchen, a big family or a tall cabinet gap.
- Buying guideSmall kitchensSmall microwave air fryer combos at 0.9 cu ft, with real sizes. Our pick is the Sharp SMC0985KS. See what you give up and which sizes come from listings only.
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