5 Best Built-In Microwaves, According to Kitchen Experts

In the Kitchen Lab, we have tested more than 30 microwaves in the past two decades. We run each model through the same set of evaluations to assess performance and ease of use.

For this guide, we considered hands-on testing experience with certain models and our long-term knowledge of the brands and their product performance. When testing microwaves, we use the following assessments:

✔️ Functionality: To assess the performance of various features, we bake four potatoes at a time, reheat a large mac and cheese casserole, and reheat a dinner plate of meatloaf with sides.

✔️ Heat distribution: We melt cheese (pictured) to see if there are hot spots in the microwave or if it heats unevenly.

✔️ Additional features: If a microwave has other settings, such as convection, air fryer, or broiler, we also put those features to the test by toasting bread, baking a cake, or air-frying chicken wings.

✔️ Presets: When available, we test presets, including popcorn and defrost. We see how long the setting takes to pop a bag of microwave popcorn, check for burning, and weigh any unpopped kernels. We defrost 1 pound of frozen ground beef in two different shapes to test for evenness.

✔️ Ease of use: Throughout testing, we assess each model's control panel, turntable position, door operation, and how easy it is to clean the microwave.

✔️ Type of built-in microwave:

• Drawer and wall-mounted microwaves tuck neatly into cabinetry at a height that works for you, whether that’s under the counter or near a wall oven.
• Over-the-range models mount above your cooktop and often double as your range’s ventilation hood.
• Many built-ins are also speed ovens—hybrid appliances that offer both convection and radiant heat. In addition to microwaving, these can bake, roast, and brown, making them a versatile (though pricier) option for cooks who want the convenience of multiple appliances in one.

✔️ Size: Capacity, measured in cubic feet, dictates how much you can fit inside. On average, microwaves range from about 0.8 cubic feet (good for small households or quick reheats) to 2.2 cubic feet or more (spacious enough for large casseroles and family meals). Match the size to your kitchen layout and cooking needs.

✔️ Wattage: Power matters. For basic reheating and defrosting, a 700- to 900-watt microwave will suffice. For faster and more thorough cooking, look for models with at least 1,000 watts. Keep in mind that many packaged frozen meal instructions are written for a 1,100-watt microwave, so anything lower will take longer to heat evenly.

✔️ Features: Today’s microwaves come loaded with smart and convenient options.

• Smart sensors detect humidity and automatically adjust cooking time.
• Turntables help ensure even heating. Removable ones are much easier to clean.
• One-touch controls, such as a +30-second button or quick-start option, add convenience.
• Preset functions cover basics like defrost and popcorn, but some models have extras for potatoes, beverages, or melting cheese.
• Air fry or convection modes are increasingly common in premium models, broadening what your microwave can do.
• Smart connectivity (via Wi-Fi or apps) lets you monitor or start your microwave remotely.
• Child safety locks are important for built-in and drawer microwaves installed at kid-friendly heights.

✔️ Aesthetics: Since built-ins become part of your cabinetry, design matters. Look for a style that matches your kitchen. Hidden or angled control panels and handleless designs create an ultra-streamlined look, while LED interior lighting adds a modern touch.

✔️ Installation: Countertop microwaves are plug-and-play, but built-ins and speed ovens require careful installation to ensure proper ventilation. You may need a trim kit for a flush fit, and professional installation is often worth it to avoid gaps, airflow issues, or electrical mishaps.

Like countertop microwaves, built-in microwaves come in different sizes. The most common sizes are 24, 27, and 30 inches. Select the size that best suits your kitchen. Unless you’re renovating, you will likely need it to fit in an existing space.

"Built-in microwaves don't need to be vented (or exhausted) to the outdoors, as with a range hood," says Dan DiClerico, director of the Home Improvement & Outdoor Lab at the Good Housekeeping Institute. "But they need adequate clearance on all sides to allow for proper air circulation." Most built-in microwaves require 1.5 to 3 inches of clearance.

Lizzy Briskin is a contributing analyst and writer in the GH Kitchen Lab. She has tested and written about the best kitchen gear, culinary tricks, and recipes for over 10 years. She loves her drawer-style microwave, especially that it’s tucked out of the way under the kitchen island.

Eva Bleyer has professionally tested all kinds of kitchen equipment, from oven ranges to juicers. Eva has tested more than 15 microwave models in the Kitchen Lab. Eva has a built-in microwave air fryer combo in her home kitchen and loves the sheer versatility—and that it doesn't take up any additional countertop space.