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3.1 | 15 Reviews

30" Built In Microwave Oven with Air Fry

KitchenAid KMBS730SPS

Available in 3 Color(s)

Features

  • 1.4 Cu. Ft. Microwave Oven Capacity fits a 9" x 13" dish
  • Assisted Cooking Modes suggest cook times and temperatures
  • Backlit Knobs twist to to navigate cooking modes and home screen
  • Broil Element uses high-heat to give food a golden finish

Quick Specs

  • Type: Microwave
  • Style: Built In
  • Width: 29.75"
  • Height: 18.5"
  • Depth: 25.125"
  • Energy Star Rated: No
  • Microwave Capacity: 1.4 cu. ft.
  • Microwave Wattage: 900.0 watts
  • Recessed Turntable: No
  • Convection Microwave: Yes
  • WiFi Connected: No

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This item has purchase restrictions.

We currently only offer this product for purchase within 70 miles of our store. Questions? Contact us for more information.

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1.4 Cu. Ft. Microwave Oven Capacity comfortably fits a variety of dishes with enough height for a mixing bowl and width for a 9" x 13" casserole dish.

1.4 cu. ft. Capacity 1.4 cu. ft. Capacity

Assisted Cooking Modes allow you to explore new recipes with confidence with built-in cooking modes and recommended preset temperatures and cook times for over 30 foods in the oven and microwave.

Backlit Knobs stay lit during preheat and pulse when cooking is finished, while offering easy access to cooking modes that allow you to start cooking in as little as 3 seconds. Plus, start the microwave with a simple tap.

Broil Element quickly sears meat, chars vegetables, browns lasagna, carmelizes the top of a casserole, and more. For better results, food should be placed in the middle of the cavity using the baking tray.

Built-in Design fits evenly with your cabinets to give your kitchen a seamless look. Install on its own in a wall or cabinet, or pair with a matching KitchenAid® wall oven for an elevated kitchen design.

Designed To Be Personalized with a curated palette of mixed metal hardware. Change up your look with handle and knob accessory kits (sold separately) in Brass, Bronze, Black Ore and Stainless Steel.

Favorites Make your favorite cooking settings easy to access by creating and saving them right in the KitchenAid app™* or directly on your appliance.*

*Appliance must be set to remote enable. Wi-Fi & App required. Features subject to change. For details and privacy info, visit kitchenaid.com/connect (USA) or kitchenaid.ca/connect (Canada).

LCD Touchscreen Display makes it easy to choose settings and track cooking progress at a glance

Microwave Air Fry Mode get crispy and browned food while using less oil than traditional deep frying.

Microwave Convection Cooking includes up to 1200-watt convection element to provide a secondary option for convection cooking, ideal for baking macaroons or tortes while you use the lower oven to prepare the entrée.

PrintShield™ Finish Resists smudges and fingerprints. The specialized coating for stainless steel is easy to clean with just water and a soft cloth, so you can spend more time cooking and less time cleaning up.

Proudly assembled in Cleveland, Tennessee, U.S.A. We take pride in building strong, reliable appliances for your home. These microwaves are proudly assembled by hard-working employees in Cleveland, Tennessee

Sensor Steam Cycle with Steamer Container allows precise steaming based on food type and the doneness level selected. Includes a steamer container to help you get the best results.

Smart Appliance lets you control the oven with your Google Assistant or an Alexa-enabled device to stay hands-on or hands-off.* The KitchenAid™ App lets you conveniently preheat, proof, bake, and roast, plus store your favorite recipes for easy reference. *Wi-Fi & App required. Features subject to change. Amazon Alexa capabilities available in U.S. only. Google Assistant capabilities available globally. For details and privacy info, visit KitchenAid.com/Connect (U.S.) or KitchenAid.ca/Connect (Canada). Alexa, Google and certain other trademarks are owned by their respective companies.

Features

  • 1.4 Cu. Ft. Microwave Oven Capacity fits a 9" x 13" dish
  • Assisted Cooking Modes suggest cook times and temperatures
  • Backlit Knobs twist to to navigate cooking modes and home screen
  • Broil Element uses high-heat to give food a golden finish
  • Built-In Design fits evenly with your cabinets to give your kitchen a seamless look
  • Designed To Be Personalized with a curated palette of handles and knobs
  • Save your favorite cooking settings for quick access
  • LCD Touchscreen Display makes it easy to choose settings and track cooking progress at a glance.
  • Air Fry Mode circulates hot air to crisp and brown
  • Microwave Convection Cooking turns the microwave into a second oven
  • PRINTSHIELD Finish coating resists fingerprints and smudges
  • Proudly assembled in Cleveland, Tennessee, U.S.A.
  • Sensor Steam Mode allows precise steaming based on food type
  • This microwave is a Wi-Fi enabled Smart Appliance model
Certifications
Ada Compliant ADA Height and Side and Front Reach Compliant
Cul Yes
Prop65 CA
Ul Yes
Controls
Control Location Top
Display Color Full Color
Electronic Display Type Digital
Microwave Selections Add A Minute; Air Fry; Control Lock; Convect; Cook Power; Cook Time; Defrost; Easy Convect; Popcorn; Reheat; Soften/Melt; Speed Cook; Steam; Timer
Number of Power Levels 10
Number of Quick Touch/one-touch Selections 0
One Touch Cooking Yes
Details
Cavity Finish Stainless
Clock Yes
Cooking Items Included Convection Rack; Steamer
Door Opening Direction Drop Down
Microwave Configuration Built-In
Microwave Type Built-In
Turntable Yes
Dimensions
Product Height 18.5
Cutout Height Max 17.75
Carton Height 25
Gross Weight 116
Carton Width 35
Product Depth 25.125
Depth With Door Open 90 Degree 35.625
Cutout Width Min 28.5
Cutout Height Min 17.625
Carton Depth 29
Cutout Depth Min 23.25
Net Weight 96
Product Width 29.75
General
Cutout Depth Min (fract) 23 1/4"
Cutout Depth Min (metric) 59.06
Cutout Height Max (fract) 17 3/4"
Cutout Height Max (metric) 45.09
Cutout Height Min (fract) 17 5/8"
Cutout Height Min (metric) 44.77
Cutout Width Min (fract) 28 1/2"
Cutout Width Min (metric) 72.39
Depth With Door Open 90 Degree (fract) 35 5/8"
Depth With Door Open 90 Degree (metric) 90.49
Microwave Interior Light Halogen
Personalized Hardware Yes
Turntable Diameter Size (fract) 14 1/8"
Turntable Diameter Size (metric) 35.88
Microwave Details
Door Release Handle
Sensor Cooking Yes
Turntable Diameter Size 14.125
Oven Details
Convection Yes
Convection Power 1,200
Cooking Power 900
Ventilation Details
Venting N/A

Quick Specs


  • Appearance

  • Type: Microwave
  • Style: Built In

  • Dimensions

  • Width: 29.75"
  • Height: 18.5"
  • Depth: 25.125"

  • Features

  • Energy Star Rated: No
  • Microwave Capacity: 1.4 cu. ft.
  • Microwave Wattage: 900.0 watts
  • Recessed Turntable: No
  • Convection Microwave: Yes
  • WiFi Connected: No

KitchenAid Buy More Save More Delivery and Installation Allowance

Offer Expires: 9/23/2026 to 10/31/2026 Must be postmarked by: 1/31/2027

Enjoy exclusive rebate savings with purchase of qualifying KitchenAid appliances. Rebate form must be postmarked by 1/31/2027.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

3.1 out of 5

46% of reviewers recommend this product.

2 Stars

Lemon

Derrick D 9/21/2026

I never in my life thought that I would spend this much for a microwave. But I wanted to match all appliances and wanted to get quality if I was going to do it. Immediately I noticed that things took a long time to heat. After a month or so I had had enough. My food would only warm up half the time. So I called customer service. They sent someone out and finally found out that I had a bad board. On a 2700.00 unit. Ok fine.. But now the microwave is completely stopped heating, and the part needed is not available. So I have and expensive brick on my wall.
Originally posted on Kitchenaid.com

No, I do not recommend this product

4 Stars

Knobby 1 9/5/2026

I bought this a month ago and disappointed with instructions on how to use. There was any. Plus it didn™€™t come with air fry basket or crisper pan which we thought we would get thru registration. Kinda regret our purchase. La
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review

2 Stars

Not happy with microwave

TimberLady 9/3/2026

Microwave is very difficult to use. Only a steamer basket included. Cannot use air fryer without basket; it was not included even though it was supposedly to be. Convection impossible because the racks are not included . Tried convection with glass dish and it did not bake well. Instructions do not include information on accessories. Very disappointed in product,
Originally posted on Kitchenaid.com

No, I do not recommend this product

Customer Provided Photos

2 Stars

Not a fan

Mgent 8/27/2026

We keep having issues where the panel freezes up. We™€™ve owned this for 6 months now. I anticipate the panel being an issue. I don™€™t like that there™€™s not an option for the clock to remain on. I don™€™t like the delay in panel startup since the clock doesn™€™t stay on. The sound for cook timer is not loud enough either. The appliance looks good - but wouldn™€™t recommend it.
Originally posted on Kitchenaid.com

No, I do not recommend this product

2 Stars

Looks nice. Doesn™€™t work yet.

Gilmo511 8/3/2026

I have not been able to use it yet. It has not worked since being installed. The service tech has been here 3 times so far. Had to order a new circuit board/panel. That didn™€™t fix it. Now waiting on a whole new replacement. So at this point I have no review of usage. I™€™m not happy to not have it working after four months into my warranty. I am hoping to hear something from customer service to remedy this situation.
Originally posted on Kitchenaid.com

No, I do not recommend this product

Customer Provided Photos

 Incentivized Review

4 Stars

Very Nice!

DP300 7/23/2026

Very nice microwave oven as well as doing many other things. Works well, looks good and does a great job. Very easy to use and understand controls. However, I wish there were a couple of things it did do. One, it needs to have a mode when you can turn off the display for cleaning. Trying to clean fingerprints off the screen is hard when you are accidentally pushing the buttons. Second, the display does not stay on. We wanted the clock to stay on, but it won't. It times out after a few minutes and the display turns dark. You should have an option of whether you want it on all the time or to go off. Unfortunately, it just goes off
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review

3 Stars

Works ok, clock does not stay on, door issues

Figgy100 7/3/2026

Hi, we just ordered and installed the kmbs730sps microwave/ convection, to match our similar oven and cook top. It looks nice, fancy, modern and a good replacement, how ever two things 1) Why have a clock if it does not stay on, this is ridiculous. power saving, come on. It looks like the unit isn™€™t working until you open or turn knob, there should be a setting to turn it off or on. Let me make the choice if I want it on or not. 2) Do you have Microwave heating up issues? Well if you try and shut door quietly, it may not close enough to fully engage the tabs all the way, convection will work, light and table will turn, no heat. You have to shut tightly to get the ™€œclick™€ so heating element will activate. Not really an adjustment or fix for this, you just have to close it hard they say. I added small thin rubber fisheye type to corners for fix. All this and I™€™ve had it a week with one technician visit. I hope this helps someone with similar issues. 3) Also if you have a gap, you can get 1,2,3 inch close out panels with double back tape that will close out fine, not the best but good option. Fix, the clock setting and make it a WiFi update.
Originally posted on Kitchenaid.com

No, I do not recommend this product

Customer Provided Photos

1 Stars

Not a true replacement

Replacenot 6/12/2026

I was very disappointed in this oven for these very simple reasons. I purchased this 30 Inch Built-in Microwave Oven Combo to replace an older no longer working KitchenAid 30 Inch Built-In Microwave Oven Combo. AND the new model was significantly smaller even though both were 30 Inch. Contrary to what I was told by the sales representative. Being a built-in I now have a gap in my custom cabinet. It would have been nice if the designers had provided some simple trim! It™€™s also disheartening to have your stainless finish that does not match your previous finish. Finally, this product is way to complicated to operate. Remember, it™€™s just an oven.
Originally posted on Kitchenaid.com

No, I do not recommend this product

 Incentivized Review

4 Stars

Works good

Vidnutz51 3/14/2026

Microwave part is pretty easy to use. Wish there was an owner manual that explains how to use it to the extent that it is designed for.
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review

4 Stars

Not sure yet....

IU1992 3/8/2026

Purchased as a replacement for a 15-year-old GE Profile unit. First for the not-so great stuff : be aware that this requires a 220 line, which was not mentioned when purchased causing a delay and additional expense for installation. Product arrived with a display issue (see photo). Lowe's offered to replace but the unit is on backorder. Repair service came out right away, but replacement part is also on back-order with no ETA which is probably common for newer models. Unit had to be re-booted this morning as some functions were locked out - power cycling resolved. As others have mentioned the clock does not stay on, suggest making this a setup option in future software releases. The volume is very faint even at max setting, not sure if this could be addressed. Unlike older designs, the handles no longer have replaceable grommets. So if you don't like the red that comes by default, you can't change those out, you have to replace the whole handle. Both the microwave and wall oven have some sharp edges and corners where the stainless steel wraps around, not really a safety concern unless you have little ones around. Also like other posters, we never got the promised follow up on the included air-fry basket. Positives - very bright interior, clean, app was easy to download and install and connect to the network - which updates time and date. Connected to the network and downloaded the software update Took about 15 minutes to download and reset. Microwave was purchased from Lowe's as part of a full kitchen upgrade with Dishwasher KDTS324SPS, Refrigerator KRSC536RPS, Wall oven KOES530SPS, Cooktop KCIT730SSS, and Warming Drawer KWES730SPS and everything else has been great so far. Overall, KitchenAid is perhaps no longer the high-end band that it once was, but it's a solid choice if you want a clean, modern look. We compared with GE Profile replacements which would have been significantly more expensive. Very happy with the aesthetic, the Lowe's sale price was quite good, came with free installation and 2-year warranty, and so far, Lowe's and KitchenAid/Whirlpool have been easy to work with. Am sure this display issue will be resolved!
Originally posted on Kitchenaid.com

Yes, I recommend this product

Customer Provided Photos

3 Stars

Very Expensive Microwave

Mike12345678 1/27/2026

Purchased this to replace a 2010ish Kitchenaid microwave/convection oven. Size is a little smaller, creating a gap to be filled (OK, can do that). You open the oven, put a dish in and press the quick start and it says please open the door and add your dish???? The old oven was our kitchen clock, but as noted by other people, you cannot keep the time displayed. And finally, why promise a free crisper for registration when in fact it never gets offered. Microwave works OK, but the logic on the touchscreen is very flawed. Picking an option for anything other than quickstart is a pain. Please provide a software update!
Originally posted on Kitchenaid.com

No, I do not recommend this product

 Incentivized Review

4 Stars

Love it but......

LilBob5 1/2/2026

I do love it but there are a few things that I am not so happy with. The time does not stay on the screen, it turns off. Also it said we would get a crisper basket when registering our microwave but never received an email or anything for this crisper basket. So disappointed about that. Happy with the way it works is working great!!
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review

2 Stars

Not so Great

JTrick 12/29/2025

We bought this model as a replacement to a similar model 10 years ago as it is a built in of the same size. This model includes an air fryer too. And its $2,400! We have had it several weeks and cannot use it yet. The box was definitely opened and the unit appeared to have been removed and put back in. It didn't work either. Waited almost two weeks to have repair techs come look at it. Tech ordered new door switches so we will see if that works. Brand new unit too! It does come with a steaming bowl for steaming. It does come with broiler pan for broiling. We were really surprised it didn't come with an air fryer basket like all other air fryers appliances. If your going to market as an air fryer please start including the basket so it can be used properly right out of the box. No crisper function like our other similar model. Assuming we actually get to use it we are pretty sure the rotating dials is not a substitute for just making a selection button on the display. No time saved just continuous rotating to find what you need. I don't know folks. $2,400 is a sizable investment. Should have been great right out of the box! Not impressed so far. We will if it all changes once it works.
Originally posted on Kitchenaid.com

No, I do not recommend this product

 Incentivized Review

4 Stars

Convection Microwave new model

JanGer 12/19/2025

I was trying to replace my unit from 2013. The new model is very different. The shiny interior makes it easier to clean. I preferred the menue buttons rather than the control knobs. Is there a way to keep the time showing? There was no users manual included. I am guessing the best methods to cook things??? Timer sounds are too soft.
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Takes convection microwave to a new level

Dgerringer3 12/8/2025

This appliance is magnificent so far. The digital controls are awesome. Every feature has worked perfectly.
Originally posted on Kitchenaid.com

Yes, I recommend this product

 Incentivized Review