Best Budget Built In Microwave by Capacity and Fit

The best budget built in microwave is the Frigidaire Gallery GMBS3068BF, a 2.2 cu. ft. built-in that fits the standard 27 or 30-inch trim kits most kitchens already have and carries a 1-year manufacturer warranty. If you have an existing over-the-range slot instead of a cabinet cutout, the GE JVM3160RFSS is the better buy: 1.6 cu. ft., 1000W, 40 lb, and a 29.9-inch width designed to bolt above a standard range.

Amazon's search does not verify the word "budget" in this category, so treat it as a shopping question you decide, not a promise any listing here makes. What the picks below do share is a real place they belong in the kitchen and a specification you can measure before you buy.

Best budget built in microwave at a glance

How I cut the field down to five

I started with every current built-in and built-in-capable microwave in the listing set and mapped each one against four criteria: whether it fits a documented cabinet or over-the-range cutout, whether interior capacity is published, whether a warranty is stated, and how the price position lands within this set.

The buyer profiles the picks map to are four:

1. Someone with a cabinet cutout already in the wall who wants the largest interior they can fit.
2. Someone replacing an existing over-the-range unit above a stove.
3. Someone installing under a counter or above a wall oven, where flexibility matters more than capacity.
4. Someone doing a full 24-inch built-in install and willing to pay for convection and air fry to be built in.

Each of the five picks below is the best match for one of those profiles, and one of them collects the leftover case where you need more oven modes than the entry tier offers. Listings that published no fit type, no capacity and no warranty were cut before the shortlist. Anything sold as strictly countertop-only, with no trim kit and no over-the-range mounting hardware, was also cut, since it does not answer a built-in question.

What the word budget actually means here

Amazon's search treated "budget" as a soft filter, not a hard one, which means the modifier is your call to enforce, not a promise the listings make. Two of the five picks sit at the cheapest end of this shortlist, one sits at the top, one sits in between, and one has no clean price position published at all.

Use the Check Price link on each pick to see the current figure, then apply your own ceiling. What I can tell you without a price figure is which pick delivers the most interior capacity for its position, which pick gives you the fewest install extras to buy, and which pick asks you to pay more because it adds convection or air fry on top of microwave heating.

• The GE is the cheapest of the five and the one buyers here choose most often by a wide margin.
• The Frigidaire Gallery is the second-cheapest but needs a separate trim kit.
• The BLACK+DECKER sits at the top of the price positions in this set.
• The AAOBOSI is the most expensive pick here.
• The Summit does not have a clean price position listed.

That is the honest picture. Budget here means "cheapest that still fits your cutout".

Built-in, over-the-range or countertop with a trim kit?

These three formats share a category page and almost nothing else. Getting the format wrong is where budgets actually get blown, because it turns into cabinetry rework.

• Built-in units slide into a framed cabinet opening and finish flush with a trim kit. The Frigidaire Gallery is built-in and needs a 27 or 30-inch trim kit bought separately. The AAOBOSI is built-in with a 24-inch face.
• Over-the-range units bolt to the underside of a cabinet above your stove and vent cooking fumes. The GE and the BLACK+DECKER are both 30-inch over-the-range models with 300-CFM vent fans built in.
• Countertop-with-trim-kit units are countertop microwaves designed to also accept a flush trim kit for below-counter or over-wall-oven installation. The Summit ships with its stainless trim kit included and lists a 15 3/4" H x 22 1/2" W x 18 1/4" D cutout.

Measure the opening you actually have before you compare anything else. A 30-inch trim kit does not fit a 24-inch cutout, and an over-the-range unit does not belong in a cabinet.

1. Frigidaire Gallery GMBS3068BF — Best overall

This is the largest interior in the shortlist, at 2.2 cu. ft., in a built-in that fits either of the two most common trim kit widths.

Best for: a standard 27 or 30-inch trim kit cutout and the largest interior in this set Skip it if: you do not want to buy a trim kit separately

The Frigidaire Gallery wins on a specification you can measure with a tape. It publishes a 24 7/16-inch width, a 19 5/8-inch depth and a 13 5/8-inch height, with a required cutout of 24 3/4 x 20 x 16 3/4 inches. That is the standard opening a builder cuts for a 27 or 30-inch trim kit, and both trim kits are offered under the same product family: the GMTK2768AF for 27 inches and the GMTK3068AF for 30 inches.

Inside, 2.2 cu. ft. is the largest interior of any pick in this shortlist. Frigidaire says the sensor cooking function reads humidity and sets power and time automatically. The trade-off is real: the trim kit is a separate purchase, and only one seller lists this unit, so availability is thinner than the GE below.

Pros:

• Largest interior in this set at 2.2 cu. ft.
• Fits standard 27" and 30" trim kit openings
• Sensor cooking is included per the listing
• Cutout dimensions are fully published
• 1-year manufacturer warranty stated

Cons:

• Trim kit sold separately, adding to total spend
• Only one seller lists it
• Weight is not published

2. GE JVM3160RFSS — Best budget pick

The cheapest pick here and the one buyers reach for most often when they are replacing an over-the-range unit rather than framing a new cabinet cutout.

Best for: replacing an existing 30-inch over-the-range unit without cabinetry work Skip it if: you have no range hood location to mount above

If you already have a microwave above your stove and you want the cheapest like-for-like replacement, this is the pick. The GE JVM3160RFSS is a 30-inch over-the-range at 29.9 inches wide, 16.5 inches tall and 15.3 inches deep, at 40 lb. The interior is 1.6 cu. ft. at 1000W, and GE publishes a 300-CFM 2-speed vent fan with a replaceable charcoal filter.

It is the cheapest of the five and by a wide margin the one buyers here choose most often, which is worth something on a category where fit surprises are common: more units in kitchens means more written cutout notes and more sellers of replacement parts. The one-touch and four-preset control layout is deliberately simple. What you give up is capacity relative to the Frigidaire and any oven mode beyond microwave and ventilation. There is no convection, no air fry, no built-in trim kit finish. It is a workhorse over-the-range, priced accordingly.

Pros:

• Cheapest pick in this shortlist
• 1000W with 1.6 cu. ft. interior
• 300-CFM 2-speed vent with charcoal filter
• 40 lb, which is manageable for a two-person install
• 1-year limited warranty on the entire appliance

Cons:

• No convection, no air fry, no grill
• Only fits an over-the-range slot, not a cabinet
• Ventilation recirculates unless ducted

3. Summit SMBI24 — Most versatile

The only pick in this set that ships with its trim kit included and is designed to install above, below or over a wall oven.

Best for: a below-counter or over-wall-oven install with the trim kit already included Skip it if: you need a published capacity figure before you buy

Summit's SMBI24 is the odd one in this set, in a useful way. It is a 24-inch 1000W unit that ships with a stainless trim kit already in the box, and Summit lists a required cutout of 15 3/4" H x 22 1/2" W x 18 1/4" D. The listing says it is built for front-venting installation above or below the counter, or over a wall oven, which is exactly the flexibility a kitchen designer needs when the standard over-the-range slot is not on the plan.

The unit is 75 lb with an outer dimension of 17 x 17.8 x 24.3 inches, and it carries a Summit Appliance Warranty plus a child safety lock on the control panel. The honest weakness is that the listing does not publish a cu. ft. interior figure, which makes direct capacity comparison against the Frigidaire and GE impossible from the data alone. If you need to know exactly how many quart casseroles fit, ask Summit before you buy.

Pros:

• Trim kit ships in the box
• Front-venting, so below-counter installs are supported
• 1000W with digital multi-stage programming
• Child safety lock on the control panel
• Cutout dimensions are fully published

Cons:

• Interior capacity in cu. ft. is not listed
• 75 lb is heavy for a single-person install
• Fewer sellers than the GE

4. BLACK+DECKER EC942K6CE-SS — Best warranty

The over-the-range pick to choose when you want air fry, convection and microwave heating in one 30-inch cabinet, without cutting a new opening.

Best for: an over-the-range slot where you also want an air fryer and convection Skip it if: you are trying to spend as little as possible

This is the pick for someone who has the GE's install location but wants the AAOBOSI's oven modes. The BLACK+DECKER is a 30-inch over-the-range at 29.9 x 16.4 x 13.9 inches, 1.5 cu. ft. inside, 900W, with a 13.6-inch turntable. BLACK+DECKER calls it a 6-in-1: microwave, air fryer, convection, combi grill, bake and roast. There is a sensor reheat mode, and the 300-CFM vent fan runs on two speeds with an integrated cooking light.

It sits at the top of the price positions in this set, which is what buys you the extra oven modes. It sells faster than the AAOBOSI and the Summit, though the GE still leads on volume by a wide margin. The trade-off against the GE is that at 900W it is 100W below the GE's microwave-only element, so straight reheat times are marginally longer. Against the AAOBOSI, you save the cost of framing a built-in cutout.

Pros:

• Six cooking modes including air fry and convection
• 300-CFM 2-speed vent with integrated light
• Sensor reheat mode included
• 13.6-inch turntable inside 1.5 cu. ft.
• 1-year warranty stated

Cons:

• Highest price position of the over-the-range picks
• 900W microwave element is below the GE's 1000W
• Air fry results depend on load size

5. AAOBOSI 24" Built-in — Best premium

A 24-inch built-in that puts convection, air fry and sensor cooking behind a glass touch panel, at the top of this set on both price and weight.

Best for: a 24-inch built-in cutout where you want convection and air fry in one box Skip it if: 90 lb is too heavy for your cabinet support

The AAOBOSI is the most expensive pick here and the only 24-inch built-in in the shortlist that combines convection and air fry with microwave heating. The listing publishes a 1.6 cu. ft. interior and outer dimensions of 22.4 wide, 23.4 deep and 17.9 tall, at 90 lb. AAOBOSI lists 12 cooking functions covering auto defrost, sensor cook, sensor reheat, air fry, popcorn and beverage presets, driven from a glass touch panel.

The shell is stainless steel and the interior is coated metal for cleaning. Warranty is stated as 3, without a stated unit, so confirm the term with the seller before you buy. There are two sellers on the listing rather than the single seller most of the other picks show, which is a small point in its favour on availability. The trade-off is weight and price: at 90 lb it is the heaviest unit in this shortlist, and it sits above the BLACK+DECKER on price for a similar mode count in a built-in rather than an over-the-range shell.

Pros:

• 12 cooking functions including air fry and convection
• 1.6 cu. ft. interior in a 24-inch built-in body
• Glass touch control panel
• Two sellers listed, better than the single-seller picks
• Coated metal interior for easier cleaning

Cons:

• Most expensive pick in the set
• 90 lb requires solid cabinet support
• Warranty listed as "3" without a stated unit

Which cutout dimensions matter most?

Three numbers decide whether a built-in microwave fits: cutout width, cutout depth and cutout height. Everything else is preference.

• Width is where trim kits are standardised. Frigidaire's Gallery accepts either a 27-inch or a 30-inch trim kit. Summit's SMBI24 needs a 22 1/2-inch wide cutout. AAOBOSI is a 24-inch face. These are not interchangeable.
• Depth is where surprises happen. Most cabinets are 24 inches deep. Two of the built-ins here sit at 23.4 and 24.4 inches deep at the body, so they use nearly all of it. Check the depth of the cabinet frame, not just the door opening.
• Height determines the size of the interior you can get. The Frigidaire's 13 5/8-inch external height fits inside a 16 3/4-inch cutout, and that gap is the trim kit's finish.

Over-the-range units skip cabinet dimensions and use the width of your range instead, which is 30 inches for a standard slide-in.

What more money actually buys in this set

Moving up the price positions in this shortlist buys you two things and only two things: more oven modes, and a more finished built-in install.

1. From the GE at the entry position to the Frigidaire Gallery, you gain 0.6 cu. ft. of interior and a proper built-in shell, and you accept the cost of a separate trim kit.
2. From the Frigidaire to the BLACK+DECKER, you drop capacity to 1.5 cu. ft. but gain air fry, convection and four other oven modes in a familiar over-the-range shell.
3. From the BLACK+DECKER to the AAOBOSI at the top of this set, you gain a fully built-in 24-inch face and a longer stated warranty term, and you pay for both.

What you do not buy by paying more here is a bigger interior. The Frigidaire at the second-cheapest price position has the largest interior of the five. That is the trap in this category.

Installation costs the listing does not show you

Three costs sit outside every product page and eat budgets:

• Trim kits, on any built-in that does not include one. Frigidaire's GMTK2768AF and GMTK3068AF are sold separately.
• A licensed electrician, on any install that adds a new dedicated circuit, which most built-in cabinet installs will need.
• Cabinet modification, when a cutout is a few millimetres off. Adjusting a face frame is not a DIY afternoon.

Ask the installer to confirm the cutout matches the listed spec before you order. Every listing here publishes its cutout dimensions except Summit's model, which publishes the required cutout instead of external dimensions.

The verdict

If your kitchen has a cabinet cutout ready for a 27 or 30-inch trim kit, the Frigidaire Gallery GMBS3068BF is the best budget built in microwave in this shortlist. The 2.2 cu. ft. interior is the largest here, the cutout dimensions match the two standard trim kit widths, and it sits at the second-cheapest price position. The one condition is that you must buy the trim kit separately, so add that to your total before you decide.

If instead your existing microwave is above your stove and you want the cheapest capable replacement, the GE JVM3160RFSS wins outright. 1000W, 1.6 cu. ft., 40 lb and a 300-CFM vent fan, for the cheapest position in this set. The cutoff between them is the wall itself: cabinet cutout means Frigidaire, over-the-range means GE. If you want convection and air fry, step up to the BLACK+DECKER for an over-the-range slot or the AAOBOSI for a 24-inch built-in cutout. The Summit is the answer when your slot is below the counter or above a wall oven, since it is the only pick that ships with its trim kit included.

FAQ

What is the best budget built in microwave right now?

The best budget built in microwave here is the Frigidaire Gallery GMBS3068BF, a 2.2 cu. ft. unit that fits either a 27 or 30-inch trim kit. It offers the largest interior in this shortlist at the second-cheapest price position. The trim kit is a separate purchase, so add that cost before committing. If you have an over-the-range slot instead of a cabinet, the GE JVM3160RFSS is cheaper still.

Is a built-in microwave worth it over an over-the-range?

A built-in microwave is worth it when your kitchen layout already has a cabinet cutout, or you cook a lot and want the range hood ventilated separately. Built-ins finish flush, free the space above your stove for a real vent hood, and typically offer larger interiors. Over-the-range units are worth it when you want a single appliance to handle both microwave and ventilation duties, and cabinet framing is not on the table.

How much cutout depth does a built-in microwave need?

A cutout depth of at least 20 inches covers every built-in in this shortlist. The Frigidaire Gallery specifies a 20-inch cutout depth against a 19 5/8-inch body. The Summit lists 18 1/4-inch cutout depth. The AAOBOSI's body is 23.4 inches deep, so plan for a cabinet that clears that. Measure from the back wall of the cabinet, not the door opening, since the frame is what limits actual depth.

Frigidaire Gallery or GE JVM3160RFSS: which should I buy?

The Frigidaire Gallery is the pick if you have a cabinet cutout and want the largest interior in this set at 2.2 cu. ft. The GE JVM3160RFSS is the pick if you have an existing over-the-range slot and want the cheapest capable replacement, at 1.6 cu. ft. and 1000W. The two do not compete on the same install: one goes in a cabinet with a trim kit, the other bolts under a cabinet above your stove.

What is the biggest mistake people make buying a budget built in microwave?

The biggest mistake buyers make on a budget built in microwave is buying the unit before measuring the cutout and pricing the trim kit. A 30-inch trim kit does not fit a 24-inch cabinet opening, and a trim kit can add meaningfully to the total. Measure width, depth and height of the actual opening first, confirm which trim kit the model uses, and add that line to your budget before you compare product prices at all.

Start with your cabinet, not the product page. If a tape measure tells you the opening matches a 27 or 30-inch trim kit and there is room for a 24.4-inch body, order the Frigidaire Gallery GMBS3068BF and the matching GMTK kit together, and you have the largest interior in this shortlist at a price position most buyers would not have expected to reach. If the tape measure tells you the microwave slot is above your stove instead, the GE JVM3160RFSS is the honest cheapest answer and the one most buyers here choose. Everything else in this shortlist is a specific answer to a specific install, and the wrong pick is the one that does not match the hole in your wall.

Last updated: September 25, 2026. Product availability re-checked.

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