What Size Microwaves Are Available
Explore the available microwave sizes from compact countertop to built in models. Learn how to measure, compare footprints, and choose the right fit for your kitchen.
What size microwaves are available refers to the physical dimensions and footprint of microwave ovens, including compact countertop, standard countertop, over the range, and built in configurations.
Understanding size categories
Size matters when selecting a microwave because footprint, placement, and airflow affect installation and daily use. According to Microwave Answers, the practical size categories you’ll encounter are compact countertop, standard countertop, over the range, and built in. Each category serves different kitchens and living styles. Compact countertop models prioritize small footprint and easy mobility, making them ideal for studio apartments or kitchens where counter space is at a premium. Standard countertop units strike a balance between interior capacity and a familiar form that fits most kitchens. Over the range designs save counter space but require appropriate cabinet clearance and a venting setup. Built in microwaves disappear behind cabinetry for a clean look and a customized kitchen fit, but they demand precise measurements and professional installation. There are other formats such as drawer microwaves and specialty units, but the core choice usually comes down to how much space you can dedicate to the appliance and how you access it. In short, size categories map to lifestyle and layout, not just wattage or features. Microwave Answers notes that choosing the right size often improves daily usability and resale value.
Compact countertop vs standard countertop
Compact countertop microwaves are designed to fit tight spaces and often weigh less and have shorter depths. They typically offer essential features and shorter power cords. Standard countertop models provide more interior space for larger containers, more even heating, and a broader feature set such as sensor cooking. The tradeoff is more counter real estate and slightly heavier units. In many kitchens, the decision comes down to counter space, accessibility, and how often you use large bowls or casserole dishes. From a usability perspective, consider where you will place the unit when in use and how you’ll reach the controls. If your cabinet height or counter edge is a constraint, you may prefer one form factor over another. When comparing, think about daily tasks like reheating meals, melting butter, or defrosting meat, and how a larger exterior size might affect placement and door clearance. The Microwave Answers team suggests listing your must have features and then comparing size classes side by side.
Over the range and built in options
Over the range microwaves mount above the stove, saving counter space but requiring ventilation clearance and compatibility with your hood. They tend to be wider to align with standard stove widths and often include built in venting. Built in microwaves integrate into upper cabinets or wall niches, delivering a seamless kitchen aesthetic. They demand exact measurements for width, height, and depth as well as an opening in cabinetry or a mounting framework. If you plan to remodel, check whether your kitchen has the necessary electrical supply and a flush installation finish. Some homeowners prefer built in models for a premium look or to free counter space for food prep, while others worry about maintenance access. Either way, measure door swing, cabinet depth, and potential interference with drawers or shelves. Remember that installation may require professional help, especially for built in or vented units.
Drawer microwaves and other formats
Drawer style microwaves sit flush with cabinetry and slide out when in use. They are popular in high end kitchens and for people who want a low profile, accessible control panel, or wheelchair friendly height. Drawer units still come in various exterior footprints and interior capacities, so size decisions affect usability just as they do with traditional countertop models. Other formats like portable countertop microwaves or compact under counter units exist for niches such as dorm rooms or busy kitchens with minimal counter space. When evaluating sizes, consider the opening width, the height clearances, and whether you will need to pull the unit forward to load heavier bowls. If you are renovating, verify that your chosen format can be integrated with your existing cabinetry and that the electrical and ventilation requirements align with local codes.
Measuring your space before shopping
Before you shop, take careful measurements of the space where the microwave will live. Start with the countertop area and note the available width, depth, and height around obstacles like cabinet doors and handles. For built in or over the range options, measure the rough opening on the cabinet and ensure there is clearance for ventilation and hinge swing. Check the width of the doorway and any hallways you must pass through during installation. Also factor in the placement of power outlets and any clearance needed behind the unit for cords and cables. A simple checklist can help: 1) measure width, height, and depth of the intended opening; 2) measure cabinet clearance and door swing; 3) check nearby outlets and venting space; 4) account for the space you need to comfortably load and unload containers; 5) leave a little extra room for air flow. This practical approach makes size a straightforward decision rather than a guess.
How exterior size affects interior capacity and performance
Exterior size is not the only measure of a microwave’s value. Larger exterior footprints often host larger internal cavities that can accommodate bigger bowls and casserole dishes; they may also provide faster cooking options due to more even wave distribution and more advanced features. However, bigger units can require more counter or cabinet space and may demand more powerful ventilation. If you cook for a family or frequently prepare large meals, a larger exterior size can improve convenience. If you rarely defrost large items, a compact model may be more energy efficient and easier to manage daily. Brand and model choice also influence how interior capacity translates to practical space, because some manufacturers optimize interior geometry differently. When you pair size with your typical cooking tasks, you’ll likely find a sweet spot that balances fit, usability, and future flexibility.
Common constraints in kitchens
Kitchen layouts impose constraints that influence size decisions. Counter depth, cabinet height, and aisle width all matter. If your countertop ends near a sink or corner, a bulky model can feel cramped and disrupt workflow. If a built in unit is tempting, inspect the cabinet openings, connector panels, and ventilation ducting to ensure it will align with your existing infrastructure. Doorways to the kitchen and hallways can also limit how you bring a new microwave into position. Electrical layout matters too; ensure a dedicated outlet is available or plan for a GFCI protected circuit if required by local codes. By thinking through these spatial constraints in advance, you can avoid buying a unit that looks right on the box but won’t fit through the doorway or into the space.
Practical buying tips by space type
For small apartments with limited counter space, prioritize a compact countertop unit with essential features and a short depth. In a family kitchen with ample room, a standard countertop model offers flexibility and more cooking options. If you prefer a sleek integrated look, a built in or over the range unit can be the best long term solution. When shopping, compare exterior footprints first, then confirm interior capacity meets your dish sizes. Look for features that add value for your routines, such as sensor cooking, auto defrost, and easy to clean interiors. Always verify ventilation compatibility for over the range models and check the installation requirements for built in units. It’s also wise to consult manufacturer installation guides and local code requirements before purchasing.
Quick-start shopping checklist
Use this quick reference as you walk the showroom floor or scroll reviews. Start with space: measure width, depth, and height; assess cabinet clearance and door swing. Then decide on a category based on how you cook and how much counter space you can spare. Check ventilation needs for over the range models and electrical requirements for built in units. Compare exterior footprints and mention interior capacity qualitatively: can the microwave fit your largest dish? Review features that matter to you, such as sensor cooking, child lock, and warranty terms. Finally, plan for installation: decide whether you can handle it yourself or need a professional, and confirm delivery or removal options. The goal is to buy a unit that fits your kitchen now and remains practical as your cooking habits evolve.
Common Questions
What are the four main microwave size categories?
The four main categories are compact countertop, standard countertop, over the range, and built in. Each category suits different spaces and usage patterns. Consider footprint, accessibility, and ventilation when choosing.
There are four main size categories: compact countertop, standard countertop, over the range, and built in. Pick based on space and how you’ll use it.
How do I know if a built in microwave will fit my cabinets?
Check the rough opening dimensions and ensure there is adequate ventilation and access to an electrical outlet. Review installation guides for clearances and mounting requirements.
Measure the opening and verify ventilation and electrical needs before buying.
Can I install an over the range microwave if I have a hood vent?
Yes, but you must match the venting requirements and space for installation. Ensure the hood and microwave fit together cleanly and allow for airflow.
Yes, with proper venting and space.
What should I measure before buying a microwave?
Measure the width, height, and depth of the intended space, including door swings and any obstacles. Check nearby outlets and ventilation space.
Measure width, height, depth, and clearance.
Are drawer microwaves a good option?
Drawer microwaves offer a low profile and accessible height, but check interior dimensions to ensure you can fit your typical dishes.
They are convenient, but verify interior size for your dishes.
Do larger microwaves always cook faster?
Not necessarily. Cooking speed depends on power and features, not just exterior size.
Size alone doesn’t guarantee faster cooking; power matters.
Main Points
- Measure your space before shopping
- Know the four main size categories
- Check ventilation and electrical needs
- Balance exterior footprint with interior capacity
- Plan for installation and future flexibility