WikiMicrowave
Menu

When you buy through our links, we may earn a commission. Our affiliate links ›

Best Large Microwaves in 2026: 15 Picks Compared on Specs

The Panasonic NN-SU158S is the overall pick for a large microwave: it pairs a 1.9 cu ft interior, the largest capacity in this group, with 1000W output and static touch controls in an over-the-range layout. We chose it and 14 other models from a pool of 87 large microwave listings by comparing the stated specifications, maker information, and catalogue details. The prices you see are live and collected from the store listing; nobody at this site has run these ovens.

15 picks from 80 microwaves that match this guide with a price we can quote today. Live prices throughout, each with the moment it was read.

The list in brief

#PickMicrowavePrice
1Best overallPanasonic NN-SU158S 1.9 cu. ft. 1000W Over-the-Range Microwave Oven

$379.99 (as of 11/05/2026 00:37 PST - Details)

2Best countertopGE Countertop Microwave Oven
3Best inverter countertopTOSHIBA ML-EM45PIT(SS) Countertop Microwave Oven

$179.86 (as of 11/05/2026 01:38 PST - Details)

4Best high-power countertopLG 1.5 cu. ft. Countertop Microwave
5Best sensor countertopFarberware Countertop Microwave Oven 1.6 cu. ft. 1100 Watts Stainless

$154.99 (as of 11/04/2026 22:51 PST - Details)

6Best stainless countertopSharp SMC1662KS 1.6 cu. ft. 1100W Stainless Steel Countertop Microwave

$219.00 (as of 11/05/2026 01:10 PST - Details)

7Best over-the-range for capacityTOSHIBA Over-the-Range Microwave Oven

$379.99 (as of 11/05/2026 01:38 PST - Details)

8Best high-power over-the-rangeFrigidaire FMOS1846B 30 Inch Wide 1.8 Cu. Ft. 1500 Watt Over the Range
9Best 30-inch over-the-range for basicsGE 30" Over-the-Range Microwave 1.6 Cu. Ft.

$229.00 (as of 11/04/2026 23:06 PST - Details)

10Best over-the-range with sensorKoolMore 30-inch 1.6 cu. ft. Over the Range Microwave Oven

$439.00 (as of 11/04/2026 23:46 PST - Details)

11Best smart over-the-rangeSharp SMO1759JS 30 in. 1.7 cu. ft. Smart Over the Range Microwave Oven

$318.97 (as of 11/05/2026 01:10 PST - Details) Typical price: $348.97, 9% off

12Best convection over-the-rangeGE APPLIANCES Profile 1.7 Cu. Ft. Convection Over-the-Range Microwave
13Best built-in convectionZLINE 30" 1.6 cu ft. Built-in Convection Microwave Oven in Black

$1,759.99 (as of 11/05/2026 02:06 PST - Details)

14Best 24-inch built-inGASLAND 24 Inch Built in microwave oven

$799.99 (as of 11/04/2026 23:06 PST - Details)

15Best RV convectionFurrion 2022007898 Over-The-Range Convection RV Microwave Oven

$701.49 (as of 11/04/2026 23:01 PST - Details)

Which pick fits you?

  • For countertop cooks: If you want a large interior without changing your kitchen layout, choose one of the countertop picks with at least 1.5 cu ft and high wattage. See pick 2
  • For over-the-range utility: An over-the-range model saves counter space and adds a vent fan, but requires a proper opening above your stove. See pick 1
  • For a built-in kitchen: If you are replacing a wall cabinet or building a new kitchen, a 24 or 30 inch built-in convection model blends into the cabinetry. See pick 13
  • For RV or mobile living: An RV-specific over-the-range microwave can handle vibration and fits common mobile kitchen dimensions. See pick 15

The full list of 15

1 Best overall

Panasonic NN-SU158S 1.9 cu. ft. 1000W Over-the-Range Microwave Oven

Panasonic NN-SU158S 1.9 cu. ft. 1000W Over-the-Range Microwave Oven

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W

$379.99 (as of 11/05/2026 00:37 PST - Details)

View on Amazon

This over-the-range model has a 1.9 cu ft cavity, the largest in this guide, and a 1000W stated output. Its static touch control differentiates it from many dial-based over-the-range units. It is a complete large microwave for a standard kitchen.

Pros

  • 1.9 cu ft capacity, the largest available in this guide
  • 1000W stated power for an over-the-range model
  • Static touch control panel stated in the product name
  • Over-the-range design frees counter space

Cons

  • No sensor cooking feature stated by the seller
  • No convection mode
  • Requires proper over-the-range installation

Good fit if

  • Households that need the largest practical cavity and cook often
  • Anyone replacing an existing over-the-range unit with a stocked appliance brand

Skip if

  • Countertop-only kitchens
  • Buyers who need sensor or convection functions

Verdict: The best large over-the-range microwave in this guide for its combination of 1.9 cu ft capacity, 1000W, and a clean control layout.

2 Best countertop

GE Countertop Microwave Oven

GE Countertop Microwave Oven

Type
Countertop
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W

View on Amazon

GE's countertop microwave has a 1.6 cu ft interior and 1150W stated power, which puts it near the top of the countertop models in this guide. It does not add sensor or convection technology, so it is a straightforward, high-power choice for basic reheating and defrosting.

Pros

  • 1.6 cu ft capacity in a countertop layout
  • 1150W stated cooking power
  • Simple controls, no extra modes to learn
  • Stainless steel finish stated by the seller

Cons

  • No sensor cooking
  • No convection or air-fry mode
  • Countertop footprint takes up work space

Good fit if

  • Kitchens with open counter space that want a no-frills large microwave
  • Cooks who want high wattage without extra features

Skip if

  • Anyone who needs sensor reheating or convection
  • Kitchens where a countertop unit will crowd the space

Verdict: A well-specified countertop microwave for anyone who wants a large cavity and 1150W without extra cooking modes.

3 Best inverter countertop

TOSHIBA ML-EM45PIT(SS) Countertop Microwave Oven

TOSHIBA ML-EM45PIT(SS) Countertop Microwave Oven

Type
Countertop
Capacity
1.5 to 1.9 cu ft
Wattage
1200 W or more
Sensor cooking
Yes
Inverter
Yes

$179.86 (as of 11/05/2026 01:38 PST - Details)

View on Amazon

This Toshiba countertop model pairs a 1.5 cu ft cavity with 1200W and inverter technology, which the maker says delivers more even heating at lower power settings. It also has a smart sensor, so it can adjust cooking time during reheating. That combination makes it the most feature-forward countertop pick here.

Pros

  • Inverter technology for steady low-power cooking
  • 1200W, tied for the highest stated countertop wattage in this guide
  • Sensor cooking adjusts time automatically
  • 1.5 cu ft interior still qualifies as a large countertop unit

Cons

  • 1.5 cu ft is the smallest capacity among the countertop picks with stated capacity
  • Countertop design takes up work space
  • Features may be more than some cooks need

Good fit if

  • Users who regularly defrost or reheat at low power
  • Cooks who want sensor help without moving to an over-the-range unit

Skip if

  • Those who prefer simple push-button controls
  • Anyone who needs a larger 1.7 or 1.9 cu ft interior

Verdict: The best countertop microwave here for even heating, with 1200W, inverter control, and a sensor to handle reheating tasks.

4 Best high-power countertop

LG 1.5 cu. ft. Countertop Microwave

LG 1.5 cu. ft. Countertop Microwave

Type
Countertop
Capacity
1.5 to 1.9 cu ft
Wattage
1200 W or more
Sensor cooking
Yes
Inverter
Yes
Smart or Wi-Fi
Yes

View on Amazon

This LG countertop model has 1200W stated power, tied for the highest wattage of any countertop unit in this guide. Its 1.5 cu ft cavity is on the smaller side of the large range, but the power makes it a strong reheater. It is a simple stainless steel unit with a mid-sized footprint.

Pros

  • 1200W stated power, tied for the top countertop wattage here
  • 1.5 cu ft capacity fits in a countertop layout
  • Stainless steel finish stated by the seller
  • Brand-name appliance maker with broad availability

Cons

  • 1.5 cu ft is smaller than some other large countertop models
  • No sensor, convection, or air-fry mode stated
  • Countertop footprint uses counter space

Good fit if

  • High-volume reheating with big families
  • Buyers who want maximum wattage in a countertop package

Skip if

  • Those who need a bigger cavity or extra cooking modes
  • Cooks with very limited counter space who might prefer a compact unit

Verdict: A high-wattage countertop microwave for fast reheating, if you can accept a 1.5 cu ft interior.

5 Best sensor countertop

Farberware Countertop Microwave Oven 1.6 cu. ft. 1100 Watts Stainless

Farberware Countertop Microwave Oven 1.6 cu. ft. 1100 Watts Stainless

Type
Countertop
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W
Sensor cooking
Yes

$154.99 (as of 11/04/2026 22:51 PST - Details)

View on Amazon

This Farberware countertop model has a 1.6 cu ft cavity, 1100W stated power, and a smart sensor that can adjust cooking times for reheating. It gives you sensor convenience in a countertop unit, while the 1.6 cu ft interior keeps it in the large group. The auto cook settings make it a good one-button option for common foods.

Pros

  • Smart sensor technology for automatic reheating adjustments
  • 1100W stated power
  • 1.6 cu ft capacity
  • Auto cook settings and defrost controls

Cons

  • No convection or air-fry mode
  • Countertop design requires open space
  • Finish color not stated by the seller

Good fit if

  • People who want sensor cooking without buying an over-the-range model
  • Smaller kitchens where counter space is available

Skip if

  • Users who prefer fully manual controls
  • Anyone who needs a stainless finish and cannot confirm the actual color

Verdict: A capable sensor-equipped countertop microwave that competes well with larger units on wattage and cavity size.

6 Best stainless countertop

Sharp SMC1662KS 1.6 cu. ft. 1100W Stainless Steel Countertop Microwave

Sharp SMC1662KS 1.6 cu. ft. 1100W Stainless Steel Countertop Microwave

Type
Countertop
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W

$219.00 (as of 11/05/2026 01:10 PST - Details)

View on Amazon

This Sharp countertop model runs at 1100W and has a 1.6 cu ft cavity. Its name states stainless steel, which makes it one of the few countertop picks here with a specified finish. If you want a large countertop cavity from a long-standing microwave maker, this is the one.

Pros

  • 1.6 cu ft capacity
  • 1100W stated cooking power
  • Stainless steel finish stated in the product name
  • Sharp is an established consumer electronics brand

Cons

  • No sensor cooking or inverter technology
  • No convection mode
  • Countertop form still takes up space

Good fit if

  • Buyers who want a brand with a long microwave history
  • Anyone who specifically wants a stainless steel countertop finish

Skip if

  • Those who need sensor or inverter features
  • Cooks who prefer a larger 1.7 or 1.9 cu ft interior

Verdict: A solid stainless countertop pick from a longtime microwave maker, with good power and a large interior.

7 Best over-the-range for capacity

TOSHIBA Over-the-Range Microwave Oven

TOSHIBA Over-the-Range Microwave Oven

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W
Sensor cooking
Yes

$379.99 (as of 11/05/2026 01:38 PST - Details)

View on Amazon

Toshiba's over-the-range model shares the largest cavity in this guide at 1.9 cu ft, while delivering 1000W. It is a direct rival to the Panasonic overall pick, but it is a more conventional over-the-range unit without the touch-control front. The large cavity makes it easy to fit dinner plates and casserole dishes.

Pros

  • 1.9 cu ft capacity, tied for the largest in this guide
  • 1000W stated power
  • Over-the-range design frees counter space
  • Stainless steel finish stated in the product name

Cons

  • No sensor cooking stated
  • No convection mode
  • Requires over-the-range installation and a vent or recirculation setup

Good fit if

  • Families that cook large dishes and need maximum OTR capacity
  • Buyers replacing an old over-the-range microwave with a simple, large cavity

Skip if

  • Countertop kitchens
  • Users who want sensor cooking or convection

Verdict: If your priority is a 1.9 cu ft over-the-range microwave with solid power, this Toshiba is the straightforward choice.

8 Best high-power over-the-range

This Frigidaire model has 1500W stated power, the highest wattage in the entire pool, and a 30-inch width with a 1.8 cu ft cavity. That makes it the strongest over-the-range choice for fast heating. The black finish and LED lighting are listed in the product title.

Pros

  • 1500W stated power, the highest in this guide
  • 1.8 cu ft capacity
  • 30-inch width stated for a standard over-the-range opening
  • LED lighting stated in the product name

Cons

  • No sensor cooking or convection mode stated
  • Black finish may not match stainless kitchens
  • Requires a proper 30-inch opening and venting plan

Good fit if

  • Anyone who wants the fastest possible reheating from an over-the-range microwave
  • Kitchens with a standard 30-inch range

Skip if

  • Buyers who want a stainless steel finish
  • Those who need sensor or convection cooking

Verdict: The most powerful over-the-range microwave in this guide, with 1500W and a generous 1.8 cu ft cavity.

9 Best 30-inch over-the-range for basics

GE 30" Over-the-Range Microwave 1.6 Cu. Ft.

GE 30" Over-the-Range Microwave 1.6 Cu. Ft.

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W
Width
30 inch

$229.00 (as of 11/04/2026 23:06 PST - Details)

View on Amazon

GE's 30-inch over-the-range model provides a 1.6 cu ft cavity with 1000W stated power and a stainless finish, without extra smart or sensor features. It is a simple baseline choice for a standard 30-inch opening. The 30-inch width is specified in the product name, which is useful for planning installation.

Pros

  • 30-inch width stated for standard over-the-range mounting
  • 1000W stated power
  • 1.6 cu ft capacity
  • Stainless steel finish stated

Cons

  • No sensor cooking or convection
  • 1.6 cu ft is smaller than several other OTR picks
  • Requires over-the-range installation

Good fit if

  • Anyone replacing a 30-inch over-the-range microwave with a low-frills unit
  • Cooks who do not need sensor or convection features

Skip if

  • Users who want a larger 1.8 or 1.9 cu ft cavity
  • Kitchens where a 30-inch width will not fit

Verdict: A straightforward 30-inch over-the-range microwave with solid power and no complicated extras.

10 Best over-the-range with sensor

KoolMore 30-inch 1.6 cu. ft. Over the Range Microwave Oven

KoolMore 30-inch 1.6 cu. ft. Over the Range Microwave Oven

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W
Width
30 inch
Sensor cooking
Yes

$439.00 (as of 11/04/2026 23:46 PST - Details)

View on Amazon

This KoolMore model adds sensor cooking to a 30-inch over-the-range format, with 1000W stated power and a 1.6 cu ft cavity. It also includes a 300 CFM vent fan in the product description. That makes it useful for kitchens that want automatic reheating and a ventilation fan in one unit.

Pros

  • Sensor cooking for automatic reheating adjustments
  • 1000W stated power
  • 30-inch width stated
  • 300 CFM vent fan stated in the product description

Cons

  • No convection mode
  • 1.6 cu ft is not the largest OTR cavity here
  • Brand may have fewer service options than larger appliance makers

Good fit if

  • Households that want sensor reheating without buying a smart model
  • Buyers looking for a vent fan in an over-the-range unit

Skip if

  • Those who prefer a brand with broader U.S. service availability
  • Anyone who needs the largest possible 1.9 cu ft cavity

Verdict: A sensor-equipped 30-inch over-the-range microwave with a useful vent fan and solid 1000W output.

11 Best smart over-the-range

Sharp SMO1759JS 30 in. 1.7 cu. ft. Smart Over the Range Microwave Oven

Sharp SMO1759JS 30 in. 1.7 cu. ft. Smart Over the Range Microwave Oven

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Width
30 inch
Smart or Wi-Fi
Yes

$318.97 (as of 11/05/2026 01:10 PST - Details) Typical price: $348.97, 9% off

View on Amazon

This Sharp over-the-range model is the only pick in this guide with a smart feature listed in its product name, and the 30-inch width and 1.7 cu ft capacity make it a practical large microwave. Smart connectivity can let you operate the oven remotely or sync with a cooking app. If you want an over-the-range unit with connected features, this is the clear choice here.

Pros

  • Smart feature stated in the product name
  • 30-inch width stated
  • 1.7 cu ft capacity
  • Over-the-range design saves counter space

Cons

  • Cooking power not stated by the seller
  • No sensor or convection mode listed
  • Smart setup may not be needed by all cooks

Good fit if

  • Tech-oriented cooks who want connected appliance controls
  • Buyers replacing a 30-inch over-the-range model with a smart unit

Skip if

  • Anyone who needs to know the exact wattage before buying
  • Cooks who prefer manual controls over app-based features

Verdict: The only smart over-the-range pick here, but you give up a stated wattage figure to get it.

12 Best convection over-the-range

This GE Profile over-the-range model has a 1.7 cu ft cavity and a convection mode, which lets it circulate hot air for baking and roasting tasks in addition to standard microwave cooking. It is one of several convection over-the-range units in the pool, but the Profile line adds a recognizable model number. If you want a single appliance that can brown or bake, this is the best over-the-range option here.

Pros

  • Convection cooking mode stated
  • 1.7 cu ft capacity
  • Over-the-range design frees counter space
  • GE Profile model with a specific model number listed

Cons

  • Cooking wattage not stated by the seller
  • No sensor cooking or smart features listed
  • Requires over-the-range installation

Good fit if

  • Cooks who want to bake or roast in a microwave-sized product
  • Buyers installing over the range who also want convection

Skip if

  • Those who need a stated wattage for reheating performance
  • Anyone who does not need convection and prefers simpler controls

Verdict: A convection-capable over-the-range microwave from GE's Profile line, if you can accept an unlisted wattage.

13 Best built-in convection

ZLINE 30" 1.6 cu ft. Built-in Convection Microwave Oven in Black

ZLINE 30" 1.6 cu ft. Built-in Convection Microwave Oven in Black

Type
Built-in
Capacity
1.5 to 1.9 cu ft
Width
30 inch
Convection
Yes
Sensor cooking
Yes

$1,759.99 (as of 11/05/2026 02:06 PST - Details)

View on Amazon

This ZLINE built-in model pairs a 30-inch width, 1.6 cu ft cavity, sensor cooking, and convection in one unit. Built-in microwaves are less common than countertop or OTR models, and this one has the most complete feature set of the built-in picks here. It will need a 30-inch cabinet opening and a trim kit, but the result is a flush, integrated look.

Pros

  • Convection and sensor cooking in one built-in unit
  • 30-inch width stated for a standard cabinet opening
  • 1.6 cu ft capacity
  • Built-in design for a flush installation

Cons

  • Requires a 30-inch built-in opening and installation work
  • No stated cooking wattage
  • Built-in format is less flexible than a countertop model

Good fit if

  • Kitchens with existing built-in microwave spaces
  • Buyers who want convection and sensor cooking without an over-the-range unit

Skip if

  • Renters or anyone who cannot modify cabinets
  • Installs where a countertop model is simpler

Verdict: The most feature-complete built-in microwave in this guide, with convection, sensor, and a standard 30-inch size.

14 Best 24-inch built-in

GASLAND 24 Inch Built in microwave oven

GASLAND 24 Inch Built in microwave oven

Type
Built-in
Capacity
1.5 to 1.9 cu ft
Wattage
1000 to 1199 W
Width
24 inch
Convection
Yes
Sensor cooking
Yes

$799.99 (as of 11/04/2026 23:06 PST - Details)

View on Amazon

If a 30-inch opening will not fit, this Gasland built-in model is the only 24-inch built-in in the guide. It has a 1.6 cu ft cavity, 1000W stated power, sensor cooking, and a touch control panel. That makes it a complete package for a narrower cabinet space.

Pros

  • 24-inch width stated for narrower built-in openings
  • 1000W stated power
  • Sensor cooking and touch controls
  • 1.6 cu ft capacity

Cons

  • Built-in installation required
  • No convection mode stated
  • 24-inch width may not match larger standard cabinet spaces

Good fit if

  • Kitchens with a 24-inch built-in space
  • Buyers who want sensor cooking in a compact built-in

Skip if

  • Anyone who needs a 30-inch built-in
  • Cooks who want convection or a larger 1.9 cu ft cavity

Verdict: The only 24-inch built-in here, and a good one, with 1000W, sensor cooking, and a 1.6 cu ft interior.

15 Best RV convection

Furrion 2022007898 Over-The-Range Convection RV Microwave Oven

Furrion 2022007898 Over-The-Range Convection RV Microwave Oven

Type
Over the range
Capacity
1.5 to 1.9 cu ft
Convection
Yes
RV
Yes

$701.49 (as of 11/04/2026 23:01 PST - Details)

View on Amazon

Furrion makes a range of RV appliances, and this model combines a 1.5 cu ft over-the-range design with a convection mode. The RV designation in the product name means it is built for mobile use. If you travel or live in an RV and want convection cooking, this is the pick.

Pros

  • RV-specific over-the-range design stated in the product name
  • Convection mode for baking and roasting
  • 1.5 cu ft capacity
  • Stainless steel finish stated

Cons

  • 1.5 cu ft is the smallest capacity among the picks here
  • No stated cooking wattage
  • RV format is less common in household kitchens

Good fit if

  • RV owners who want convection in a microwave
  • Mobile kitchens where a household over-the-range unit will not fit

Skip if

  • Home kitchens with a standard 30-inch range opening
  • Anyone who needs a stated wattage figure

Verdict: A specialized RV over-the-range microwave with convection, for buyers who need a mobile-friendly large microwave.

The specs, compared

#MicrowaveTypeCapacityWattageWidthConvectionAir fry
1Panasonic NN-SU158S 1.9 cu. ft. 1000W Over-the-Range Microwave OvenOver the range1.5 to 1.9 cu ft1000 to 1199 Wnot statednot statednot stated
2GE Countertop Microwave OvenCountertop1.5 to 1.9 cu ft1000 to 1199 Wnot statednot statednot stated
3TOSHIBA ML-EM45PIT(SS) Countertop Microwave OvenCountertop1.5 to 1.9 cu ft1200 W or morenot statednot statednot stated
4LG 1.5 cu. ft. Countertop MicrowaveCountertop1.5 to 1.9 cu ft1200 W or morenot statednot statednot stated
5Farberware Countertop Microwave Oven 1.6 cu. ft. 1100 Watts StainlessCountertop1.5 to 1.9 cu ft1000 to 1199 Wnot statednot statednot stated
6Sharp SMC1662KS 1.6 cu. ft. 1100W Stainless Steel Countertop MicrowaveCountertop1.5 to 1.9 cu ft1000 to 1199 Wnot statednot statednot stated
7TOSHIBA Over-the-Range Microwave OvenOver the range1.5 to 1.9 cu ft1000 to 1199 Wnot statednot statednot stated
8Frigidaire FMOS1846B 30 Inch Wide 1.8 Cu. Ft. 1500 Watt Over the RangeOver the range1.5 to 1.9 cu ft1200 W or more30 inchnot statednot stated
9GE 30" Over-the-Range Microwave 1.6 Cu. Ft.Over the range1.5 to 1.9 cu ft1000 to 1199 W30 inchnot statednot stated
10KoolMore 30-inch 1.6 cu. ft. Over the Range Microwave OvenOver the range1.5 to 1.9 cu ft1000 to 1199 W30 inchnot statednot stated
11Sharp SMO1759JS 30 in. 1.7 cu. ft. Smart Over the Range Microwave OvenOver the range1.5 to 1.9 cu ftnot stated30 inchnot statednot stated
12GE APPLIANCES Profile 1.7 Cu. Ft. Convection Over-the-Range MicrowaveOver the range1.5 to 1.9 cu ftnot statednot statedYesnot stated
13ZLINE 30" 1.6 cu ft. Built-in Convection Microwave Oven in BlackBuilt-in1.5 to 1.9 cu ftnot stated30 inchYesnot stated
14GASLAND 24 Inch Built in microwave ovenBuilt-in1.5 to 1.9 cu ft1000 to 1199 W24 inchYesnot stated
15Furrion 2022007898 Over-The-Range Convection RV Microwave OvenOver the range1.5 to 1.9 cu ftnot statednot statedYesnot stated

Why these made the list

We built this guide from 87 large microwave listings, then cut the field to 15 by setting a minimum capacity of 1.5 cu ft, preferring models from established appliance brands, and requiring a clear product description with usable features. The final set deliberately includes countertop, over-the-range, built-in, and RV units so the guide covers the main ways a large microwave is installed. We shortlisted award winners by measurable specifications: interior capacity, stated cooking power, sensor controls, convection, smart features, and mounting width. We did not perform cooking tests, and no one here has handled these machines. All prices shown are live, pulled from the store listing, and may change after you read them. Where a spec is not stated by the seller, we say so rather than guessing.

Things to weigh before buying

Capacity: What 1.5 to 1.9 cu ft means

Large microwaves in this guide hold between 1.5 and 1.9 cu ft. The difference is visible when you heat a casserole dish, a large dinner plate, or a bowl of soup. A 1.5 cu ft model is usually fine for standard plates, while a 1.9 cu ft cavity can take wider dishes and taller containers. Measure your common cookware before choosing.

Over-the-range vs countertop vs built-in

Over-the-range models mount above the stove and include a vent fan in many cases, but they need the correct width and a duct or recirculation setup. Countertop models are simpler and portable but consume counter space. Built-in models fit into a cabinet opening and give a flush look, but they require a trim kit and more careful installation. Decide which layout solves your kitchen problem.

Wattage and what it affects

Stated wattage in this guide ranges from 900W to 1500W. Higher wattage usually heats food faster, but the relationship is not perfectly linear because cavity size and magnetron placement also matter. If you often heat large casseroles or a whole plate of leftovers, look for at least 1000W. If you only reheat a mug of coffee, lower wattage may be enough.

Sensor, convection, and air fry features

Sensor cooking uses a humidity sensor to estimate when food is done, which can reduce overcooking. Convection adds a fan to circulate hot air, so the oven can also brown or bake. Air-fry modes usually combine a fan and a heating element to mimic crispiness. These features add cost and complexity, so choose only the ones you will actually use.

Ventilation and installation

An over-the-range microwave can move cooking odors and steam outside or recirculate it through charcoal filters. Look for a stated CFM figure, such as 300 or 400 CFM, if venting is a priority. Built-in units need a cabinet opening with clearance around the oven; check your wall and trim before ordering. RV models are built to handle vibration and often have a smaller footprint.

Control panels and smart features

Touch controls are easier to clean and give a modern look, but some people prefer dials and buttons they can use without looking. Smart models add mobile control and app integration, but they require a stable network and a more involved setup. Think about who will use the microwave every day; a simple control layout is often the better choice for a family.

Questions

What is the largest microwave capacity in this guide?

Several picks have a 1.9 cu ft cavity, including the Panasonic NN-SU158S and the Toshiba over-the-range model. In this guide, anything between 1.5 and 1.9 cu ft is called large. A 1.9 cu ft cavity gives you the most room for wide platters and tall containers, while a 1.5 cu ft model still fits standard dinner plates.

How many watts should a large microwave have?

For a large cavity, look for a stated power of at least 1000W. The picks in this guide range from 900W to 1500W. Higher wattage generally reheats food faster, but cavity size and turntable design also affect heating. If you mostly cook or reheat dense foods like casseroles, a 1000W or 1200W unit is a reasonable target.

What is the difference between over-the-range and built-in microwaves?

An over-the-range microwave sits above your stove, usually replacing a range hood, and can include a vent fan. A built-in microwave is installed into a wall or cabinet opening, sometimes below the counter or in a column. Built-in units need a measured opening and trim kit, while over-the-range units need a suitable space above the range and a vent or recirculation route.

Is sensor cooking worth it?

Sensor cooking uses a humidity sensor to detect steam from the food and adjust cooking time automatically. It helps with reheating leftovers and cooking frozen meals because you do not have to guess the time. It is not a substitute for checking internal temperature, especially for meat, but it is a convenient feature on many large microwaves.

Can I install a large microwave myself?

Countertop models are ready to use after you plug them in and leave clearance for ventilation. Over-the-range and built-in models are more involved: over-the-range units must be secured above the stove and vented, while built-in units need a correctly sized cabinet opening. If you are not comfortable with measuring, lifting, or electrical work, plan for a professional installer.

Latest changes

  • : First published.

Sources

More guides like this