Top 10 Small Microwaves for Under Cabinet Installation with Expert Buying Tips

Top 10 Small Microwaves for Under Cabinet Installation offer compact size and efficient heating, perfect for saving countertop space without sacrificing cooking power. These models fit easily under cabinets, making them ideal for small kitchens with limited room. They balance wattage, size, and price, often staying under $500, while providing reliable performance and easy installation.

You’re likely a homeowner or renter looking to optimize kitchen space with a small microwave that installs neatly beneath cabinets. This article highlights practical options, sizing and power advice, plus tips to help you choose a microwave that suits your kitchen layout and cooking needs.

Top 10 Small Microwaves for Under Cabinet Installation Under $500

Choosing a small microwave for under cabinet installation means considering compact size, wattage, and budget. Most models suited for this setup offer capacities between 0.7 and 0.9 cubic feet, balancing enough interior space with a footprint narrow enough to fit under typical cabinets. The wattage usually ranges from 700 to 1100 watts, providing efficient and even cooking without excessive power consumption or heat output.

Prices for these microwaves mostly sit under $500, with basic models starting near $50 and more feature-rich units around $150 to $300. Under cabinet installation may require specific mounting options, so models that come with brackets or mounting kits designed for this purpose help simplify the process without professional assistance. Key features to look for include simple control panels, consistent heat distribution, and ease of cleaning, such as removable turntables and accessible interiors.

Using a model like the Toshiba EM131A5C provides a good balance of size and power, fitting well under most cabinets without crowding the kitchen. Its instant-start presets save time, and the included mounting brackets reduce installation hassle, keeping costs lower than professional install services. Budget models under $150 typically require additional mounting hardware or modifications, which can add to total costs and installation time.

Choosing microwaves closer to 1,000 watts ensures even heat distribution, critical for cooking efficiency under the limited ventilation often found in under cabinet setups. Avoiding units with wattage below 700 helps maintain reasonable cooking times without overheating the area. Simple control panels reduce user errors and maintenance needs, especially when frequent use occurs in busy kitchens.

How to Choose the Right Size and Power for Under Cabinet Microwaves

Selecting the appropriate size and power for under cabinet microwaves makes sure the appliance fits well and operates efficiently in your kitchen setup. Start by accurately measuring the height, width, and depth of the space where the microwave will go. Under cabinet microwaves generally range from 10 to 14 inches tall, 17 to 22 inches wide, and 12 to 18 inches deep. For instance, the Toshiba EM925A5A-BS measures roughly 12.25 inches high, 20.69 inches wide, and 15.81 inches deep, fitting most common under cabinet areas. Choosing a model that matches your clearance avoids trouble during installation and helps maintain proper airflow, preventing damage and ensuring safe use.

When measuring, use a tape measure to record the exact space beneath your cabinet, including allowances for ventilation and door clearance. Leave an extra half-inch to one inch for ventilation behind and above the microwave. Consult your cabinet’s depth if selecting a drawer style microwave, as drawer microwaves require more precise sizing to slide properly and clear cabinet framing.

Wattage relates directly to cooking efficiency and time. Small microwaves suited for under cabinet installation typically range from 700 to 1,200 watts. Models around 900 to 1,000 watts, like the Toshiba EM925A5A-BS (900 watts) or a 1,000-watt model with 1.2 cubic feet capacity, usually balance power and size effectively. Higher wattage shortens cooking time and heats food evenly. For instance, heating chocolate at 50% power takes significantly longer than at 100%, showing how wattage impacts performance. Choosing a microwave with a power rating around 1,100 watts or higher offers faster cooking and more even defrosting for meals that require quick preparation.

The microwave’s internal capacity also links to size and power. Compact models with 0.7 to 1.2 cubic feet capacity typically suit under cabinet installations and small kitchens. A smaller capacity limits the size of dishes you can use, so choose based on your typical cooking needs. For heating single portions or reheating leftovers, smaller capacity around 0.7 cubic feet with 700 watts may suffice, like the Farberware FMO07ABTBKA. Larger capacities allow heating multiple dishes or larger plates but require more cabinet space.

To pick the right microwave, balance the kitchen’s physical space and your cooking habits. Measure your cabinet space precisely first. Next, decide how quickly you want your food heated and how much volume you expect to cook regularly. For most small kitchens, a compact microwave approximately 12 by 20 by 15 inches with power between 900 and 1,100 watts and capacity near 1.0 to 1.2 cubic feet offers reliable cooking without sacrificing space.

Failing to leave adequate ventilation space around an under cabinet microwave can cause overheating and shorten the appliance’s life.

Features That Make Small Microwaves Ideal for Under Cabinet Use

Small microwaves designed for under cabinet installation typically include features that improve cooking quality, save space, and allow for proper ventilation. Technologies like inverter cooking and sensor programs provide consistent results, while built-in vents or exhaust fans help with air circulation. User-friendly controls and door types also make these microwaves easier to use in tight spaces.

Inverter vs Traditional Microwaves

Inverter technology supplies a steady stream of power at variable levels, rather than cycling full power on and off like traditional microwaves. This allows for more precise temperature control, preventing overcooking or cold spots. For example, inverter microwaves can gently warm delicate foods or melt chocolate without scorching.

Traditional microwaves deliver full power in intervals, which can lead to uneven heating. Although inverter technology can sometimes come at a higher cost, it’s worth prioritizing if you frequently cook different types of food or reheat leftovers. In some tests, sensor cooking modes paired with inverter power yielded the best results.

Built-In Ventilation and Exhaust Features

Microwaves installed under cabinets, especially above cooktops, often include built-in ventilation systems that serve as both a microwave and an exhaust fan. These systems can help remove smoke, steam, and kitchen odors while you cook. Most models need around 4 inches (10cm) of clearance on the sides for proper airflow and about 8 inches (20cm) of space at the top for venting.

It’s important to check if your microwave vents out through ductwork or recirculates air back into the kitchen. Recirculation models usually have charcoal filters that need replacing every 6 to 12 months. Built-in ventilation saves space by combining two functions, but dedicated range hoods typically provide better exhaust performance. You might pay an extra $50 to $150 for microwaves with strong built-in fans.

User-Friendly Controls and Door Styles

Simple, intuitive controls improve usability under cabinets, where space and viewing angles can be limited. Many small models feature touchscreen or easy-to-press buttons with clear labels. Useful controls include “Quick 30” add-time buttons, child locks, and delay start options that improve safety and convenience.

Door types influence installation and ease of access. Traditional swing doors are common and offer straightforward access to food. Some under cabinet microwaves come with soft-close doors, reducing noise and wear. For very tight spaces, models with drop-down doors or pull handles might not be practical. Smooth, fingerprint-resistant finishes also keep the exterior looking clean in busy kitchens.

Preset Programs and Sensor Cooking Benefits

Preset cooking programs eliminate guesswork by adjusting time and power based on food types like popcorn, frozen vegetables, or beverages. Sensor cooking takes this a step further by monitoring steam or humidity emitted from food to automatically stop cooking when the food is done. This helps avoid overcooking and improves energy efficiency.

Comparison between sensor cooking and manual timers reveals that sensor programs deliver consistent, automatic results, while manual timers require you to estimate cooking time, which can lead to uneven heating. Sensor cooking may cost a bit more but suits users seeking convenience and precision.

• Inverter technology for steady, controlled power
• Built-in exhaust fan with duct or recirculation options
• Sensor cooking modes using humidity or steam detection
• Preset cooking programs for common foods and reheating
• User-friendly controls: quick-add buttons, child lock, delay start
• Door styles: traditional swing or soft-close doors preferred
• Ventilation clearance: about 4 inches on sides, 8 inches at top

Prioritize inverter technology and sensor cooking if you want precise and consistent results. Choose a microwave with built-in ventilation if it will sit above your cooktop. For small kitchens, select models with simple controls and door types that suit your cabinet layout and space limitations.

Reliable Brands and Models Under $500 for Under Cabinet Installation

Several brands stand out for offering reliable small microwaves suitable for under cabinet installation while staying under $500. The main players in this category are Midea, Galanz, HomeChef, KitchenAid, and Thermador. Midea and Galanz manufacture most of the microwaves sold in this budget segment, often overseas, but they deliver good value with ventilation options that either vent air externally or recirculate filtered air. These brands typically offer models priced between $100 and $400, balancing affordability and dependable features. You can trust these models for everyday cooking, though they may have limited interior capacity compared to larger units.

HomeChef offers a few compact models around $300 to $450, noteworthy for their three-year warranty, which exceeds the usual one-year coverage common in this price range. This extended warranty primarily reflects confidence in key components like the magnetron, responsible for microwave generation. KitchenAid and Thermador provide small microwaves closer to the higher end of the budget, topping out near $500. KitchenAid models often fit flush with cabinetry for a clean installation look, with moderately rated reliability and owner satisfaction. Thermador microwaves receive midlevel ratings in predicted reliability and user feedback, making them solid choices if you want brand prestige within budget constraints.

Warranty terms directly affect your peace of mind. Most models under $500 come with a standard one-year warranty that covers all parts and labor. HomeChef distinguishes itself with a three-year warranty, but note that some brands highlight longer warranties on specific components like the magnetron only, not the entire appliance. A longer, more complete warranty often signals better durability and potentially lower repair costs over the appliance’s life.

Overseas-made microwaves dominate the budget range, primarily from manufacturers in Asia. Despite concerns that sometimes arise about overseas production, these models are widely used and have proven reliable when purchased from reputable brands. They undergo rigorous efficiency and safety testing to meet US standards and often come with customer support and parts availability through their brand channels. However, it’s wise to buy from established sellers who provide clear warranty service policies to avoid difficulties with repairs.

Budget models from these brands tend to have fewer advanced features than higher-end microwaves. For example, smaller internal cavities limit cooking large dishes, and some control panels might use simpler button layouts instead of touchscreens. Installation is generally straightforward since these small models are designed for compact spaces, but precise measurement is essential to ensure proper under cabinet fit. Most brands also provide detailed installation guides and offer ventilation options suitable for under cabinet setups.

Good results look like consistent heating performance, dependable controls, and straightforward maintenance. What can go wrong includes uneven heating due to small cavity size and occasional component failures that may require repair or replacement after the warranty period. Choosing microwaves from brands with solid customer reviews and clear service policies helps you reduce these risks and find a unit that fits your kitchen without exceeding your budget.

Installation Guide: How to Mount a Small Microwave Under Cabinets Safely

Mounting a small microwave under your cabinets requires careful preparation and attention to safety to ensure the installation is secure and your microwave operates efficiently. You’ll need specific tools and hardware, follow a clear step-by-step method, and maintain proper ventilation. In some cases, hiring a professional is the safest choice, especially if electrical or ventilation modifications are involved.

Required Tools and Mounting Hardware

To install a small microwave under cabinets, gather essential tools such as a drill with multiple drill bits, a stud finder, a screwdriver, a level, tape measure, and a pencil. You will also need mounting hardware, which typically includes bolts, mounting brackets, and screws. Most microwaves designed for under cabinet installation come with a mounting kit or you can purchase a trim kit separately to achieve a flush-built-in appearance. Ensure you use hardware compatible with your cabinet material and weight requirements of the microwave.

Standard mounting kits include a flange or mounting plate and brackets. Confirm your microwave model’s manual for any specific hardware or additional parts needed. A dedicated 120V electrical outlet near the installation site is also necessary to power the unit safely.

Step-by-Step Installation Process

Follow these steps carefully to install your microwave under the cabinet:

1. Locate and mark the cabinet joists using a stud finder to ensure the microwave mounts securely to solid wood.
2. Measure the microwave’s mounting bracket and use a level to mark the corresponding position on the underside of the cabinet.
3. Pre-drill holes in the cabinet base where the mounting screws will be inserted, matching the bracket’s holes precisely.
4. Attach the mounting bracket securely to the cabinet bottom using the provided screws or bolts.
5. Lift the microwave and align it with the mounted bracket ensuring it fits snugly and is supported evenly.
6. Secure the microwave into the bracket using the screws or locking mechanism included in the mounting kit.
7. Plug in the microwave after confirming that there is a nearby dedicated outlet and test its operation.
8. Install a trim kit if desired for a built-in look, following the kit’s instructions carefully for a smooth finish.

Always double-check that the microwave is mounted to studs or solid wood to avoid structural failure or falls.

Safety and Ventilation Best Practices

Proper ventilation is important when installing a microwave under a cabinet to prevent overheating and ensure efficient operation. Confirm that your cabinet space has adequate air circulation according to the microwave’s installation guide. Some models require at least 3 inches of clearance above and behind for venting.

Make sure the electrical outlet can handle the microwave’s power rating, typically between 700 and 1,100 watts for small models. Avoid using extension cords to reduce fire hazards. If venting to the outside or through ductwork is necessary, professional installation is strongly recommended to meet safety standards. Check that your microwave carries certification from safety organizations like UL Solutions as this indicates compliance with electrical and fire safety regulations.

Common Mistakes to Avoid

Incorrect measurements and ignoring cabinet strength can lead to improper installation or damage. Avoid mounting the microwave without finding studs or securing the bracket to weak materials such as thin plywood without reinforcement. This can cause the unit to become loose or fall.

Do not install the microwave in an enclosed cabinet without ventilation, as this increases the risk of overheating. Similarly, avoid blocking the exhaust vent on over-the-range models.

Consider calling a professional if your microwave requires hardwiring, ducted venting, or if your cabinets lack a suitable mounting structure or power outlet. Attempting complex electrical or structural modifications without experience can create dangerous conditions or void your warranty.

Comparing Drawer and Under Cabinet Microwaves for Small Kitchens

Under counter microwave drawers differ from traditional under cabinet mounted microwaves primarily in their design and installation. A microwave drawer is installed beneath a countertop or cabinet and slides out horizontally like a kitchen drawer. This layout offers direct access to the heating chamber at waist height, which can be more ergonomic and safer, especially in tight kitchen spaces.

Traditional under cabinet microwaves mount directly under upper cabinets, typically above the countertop. They open with a front door that swings downward or sideways. These models save countertop space but may require sufficient overhead clearance and space for the door operation.

Installation complexity varies significantly between the two. Microwave drawers usually need custom cabinetry modifications and dedicated electrical wiring to accommodate the built-in design and drawer hardware. These installations can cost between $300 and $700, excluding the price of the unit. In contrast, mounted under cabinet microwaves often require simpler bracket installation and a standard electrical outlet, making them more accessible for renters or DIY installations with costs around $100 to $200 for installation and hardware.

Cost also differs, with microwave drawers typically priced $200 to $400 higher than under cabinet models due to their specialized design and installation requirements. In kitchens where space is extremely limited, a microwave drawer’s ability to free up countertop and overhead space by tucking into the cabinetry may justify the additional expense. However, if the layout doesn’t support cabinetry modifications or if budget is a priority, a mounted under cabinet microwave offers a balance of convenience and affordability.

Choosing between these two depends on your specific kitchen layout and how you use your microwave. If your kitchen has limited countertop and cabinet space and allows for cabinetry changes, a microwave drawer saves the most space while providing easy waist-level access. For renters or those on a budget, a mounted under cabinet microwave offers a good balance of freeing counter space without complex installation.

Keep in mind the depth and height of cabinets when considering a drawer microwave to ensure it fits properly. Consult a professional if your kitchen’s cabinetry is non-standard. The added convenience of a drawer microwave can improve daily use, but the upfront costs and installation complexity may not fit every kitchen or budget.

Maintaining and Cleaning Your Under Cabinet Microwave for Longevity

Cleaning your under cabinet microwave regularly is key to keeping it working well and lasting for years. A buildup of food splatters or grease can cause odors and reduce the efficiency of your microwave. Wiping surfaces often and maintaining proper ventilation are important to prevent these issues.

Follow these steps every one to two weeks, or more often if you use your microwave daily. Use a soft cloth or sponge with mild dish soap diluted in warm water. Avoid abrasive cleaners or scouring pads that can scratch the microwave’s surfaces or damage the door seals. Also, keep the vent filter clean by removing it according to the manufacturer’s instructions and washing it in warm, soapy water every few months. This helps prevent odors and ensures proper airflow.

1. Unplug the microwave. Before cleaning, disconnect power to avoid any electrical hazards and protect the controls from accidental activation.
2. Remove the turntable and clean it separately. Wash the glass tray with warm, soapy water and dry it thoroughly to prevent mold buildup.
3. Wipe the interior. Use a damp cloth or sponge soaked in a solution of one tablespoon of mild dish soap mixed with a cup of warm water. Remove any food splatters or stains. For stubborn spots, microwave a bowl of water with lemon slices for 2 to 3 minutes to create steam that loosens residue.
4. Clean the door and seals. Gently wipe the door edges and seals with a soft cloth to maintain a good seal and prevent leakage of microwaves. Avoid pressing too hard to prevent damage.
5. Clean the exterior. Wipe the outside of the microwave with a damp cloth and mild detergent, paying attention to the control panel without letting moisture seep inside.
6. Check and clean ventilation filters. Remove grease or charcoal filters if your model has them. Wash grease filters in warm, soapy water every 1 to 3 months, and replace charcoal filters according to the manufacturer’s timeline, usually every 6 to 12 months.
7. Dry all parts thoroughly. Use a dry cloth to wipe the interior, exterior, and all removable parts to prevent moisture buildup, which can cause rust or electrical issues.
8. Plug the microwave back in and test it. Run the microwave empty for 20 to 30 seconds to ensure everything works correctly and that no cleaning materials remain inside.

Do’s and don’ts for microwave maintenance:

• Do clean spills promptly to prevent buildup and odors.
• Do keep the door seals clean and intact to ensure safety and efficiency.
• Do maintain ventilation filters regularly to prevent overheating.
• Don’t use harsh chemicals or bleach inside the microwave.
• Don’t put metal objects or aluminum foil inside, which can damage your microwave.
• Don’t ignore strange smells or noises, these can be signs of needed maintenance or service.

Following these cleaning and maintenance practices costs little beyond time and basic supplies but can extend the typical 7 to 10-year lifespan of your under cabinet microwave. Neglecting cleanup often leads to reduced cooking performance, unpleasant smells, and more frequent repairs. Regular care helps your microwave stay efficient and safe for everyday use.

Maximizing Cooking Performance: Wattage, Power Levels, and Cooking Tips

Wattage and power levels are key to how quickly and evenly your small microwave cooks food. Higher wattage generally means faster cooking and more even heating, while adjusting power levels helps tailor cooking for different foods. Using these features correctly can improve your results and prevent overheating or uneven spots.

Understanding Microwave Wattage

Microwave wattage measures the power of the oven’s magnetron, the component that generates microwaves to heat your food. For small microwaves designed for under cabinet installation, wattage typically ranges from about 700 to 1250 watts. A model with 1100 watts, like the Toshiba EM131A5C-BS, heats faster and more evenly than one with 700 watts, such as the Cuisinart CMW-70.

If you switch from an 1100-watt microwave to a 700-watt model, you’ll need to increase the cooking time roughly by a factor of 1.57 (1100 ÷ 700). For example, if heating a plate of leftovers takes 2 minutes at 1100 watts, it will take about 3 minutes and 10 seconds at 700 watts for similar results. Lower wattage microwaves save space and energy but need more patience and careful timing.

Benefits of Inverter Technology

Inverter microwaves deliver power continuously at varying levels instead of cycling the magnetron on and off. This steady power flow ensures more consistent heating and prevents overcooking edges while undercooking the center. Panasonic’s models with Cyclonic Wave Inverter Technology are examples that provide even heating and better cooking results, especially on delicate dishes like fish or defrosting meats.

Inverter technology also allows precise power adjustment instead of just stepping between preset power levels. This means you can defrost and cook at lower powers without the uneven temperature swings typical in standard microwaves. Expect to pay a bit more for these models, typically $100 to $200 above basic units, but you gain cooking flexibility and improved texture.

Power Level Settings Explained

Adjusting power levels changes the intensity of microwave energy during cooking. Full power (100%) is ideal for boiling liquids or cooking frozen foods quickly. Medium power (50%) works well for gentle cooking, melting, or softening, such as heating sauces or melting butter. Low power (10%, 30%) is best for defrosting or keeping food warm without overcooking.

Most microwaves let you set cooking in stages. You can run 3 minutes at 100% power, then 2 minutes at 50%, which helps food cook evenly inside and out. For example, when reheating casseroles, start at high power to heat quickly, then finish on lower power to avoid drying out. Using presets or sensor cooking can automate these steps for you, especially in models with multiple modes.

Tips for Even Cooking and Reheating

To maximize heating evenness, stir or rotate food partway through cooking, especially in microwaves without a turntable or sensor cooking. Using microwave-safe covers traps steam and distributes heat more evenly, reducing cold spots. Place thicker food portions toward the edges where microwaves concentrate.

Sensor cooking features, found on models like the Toshiba EM131A5C-BS, detect humidity released by food to adjust cooking time and power levels automatically. This delivers consistent results without guesswork. For foods with uneven density or shapes, try multi-stage cooking, mixing power settings and times to balance speed and thoroughness.

Stop the microwave halfway and stir liquids or thick dishes to avoid hot spots and improve overall heat distribution.

Step-by-Step Action Plan for Installing Your Small Under Cabinet Microwave

Follow these steps to successfully install and start using your new small microwave under your kitchen cabinet, ensuring safety and convenience.

1. Before you start: Measure your cabinet space carefully and confirm the microwave dimensions fit the designated spot. Knowing this ensures you choose the right model.
2. Day 1: Select a microwave with at least 700 watts and multiple power levels for flexible cooking options. Test the settings once installed to confirm full functionality.
3. Day 2: Gather all necessary installation tools and mounting hardware included with the microwave or recommended by the manufacturer. Double-check everything before drilling or attaching.
4. Day 3: Follow the manufacturer’s installation guide step-by-step to securely mount the microwave under the cabinet. Confirm it holds firmly and is level.
5. Day 4: Connect the microwave to a properly grounded electrical outlet. Test the microwave by running it on different power levels to verify proper electrical function.
6. Week 1: Clean the interior and exterior using mild detergent to remove installation dust. Regular cleaning keeps the appliance performing well.
7. Week 2: Experiment with functions like defrost and reheating using small test items. Adjust cooking times based on your kitchen’s needs and wattage.
8. Month 1: Inspect the mounting and cord placement to ensure nothing has loosened or become a safety hazard. Make adjustments as needed to maintain safety.

Frequently Asked Questions

What Are the Top Small Microwaves for Under Cabinet Installation?

The top small microwaves for under cabinet installation combine compact size, efficient power, and built-in ventilation, ideal for saving space in your kitchen. Check expert reviews and look for models specifically designed for under cabinet mounting.

Can Under Cabinet Microwaves Handle Regular Cooking Tasks?

Yes, most under cabinet microwaves provide sufficient power and features to cook or reheat everyday meals quickly and evenly, thanks to wattages generally ranging from 700 to 1,100 watts.

How Much Clearance Do I Need Around My Under Cabinet Microwave?

Allow about 4 inches (10 cm) of space around the sides and 8 inches (20 cm) above for proper ventilation to prevent overheating and ensure optimal performance.

Do Under Cabinet Microwaves Include Built-In Ventilation Systems?

Many models have built-in ventilation to help remove smoke and odors when installed above a cooktop, but check specifications to confirm if the microwave meets your kitchen’s ventilation needs.

Are Small Under Cabinet Microwaves Energy-Efficient?

Yes, under cabinet microwaves are generally energy-efficient options for small kitchens since they use less power compared to larger units while cooking effectively.

What Is the Difference Between Under Counter and Under Cabinet Microwaves?

Under counter microwaves are installed below countertops, while under cabinet units mount beneath upper cabinets, influencing accessibility, kitchen layout, and ventilation options.

Before You Go

Selecting the right small microwave for under cabinet installation ensures you get a reliable appliance that saves counter space and fits your budget. Start by measuring your space and checking wattage to match your kitchen needs, then follow installation and maintenance steps carefully. Your next move is to shop models that fit your measurements and offer the features you want, focusing on trusted brands under $500.