Countertop microwave ovens under 18 inches deep are a game changer for anyone with limited kitchen space. Whether you’re renting a cozy apartment or simply want to maximize your countertop real estate, these compact microwaves deliver powerful performance while fitting neatly into tighter spots.
Key takeaways
- Compact microwaves under 18 inches deep are ideal for small kitchens, dorm rooms, and RVs without sacrificing cooking power.
- Many models offer smart features like sensor cooking and easy-to-clean interiors despite their small footprint.
- Power ranges typically from 700 to 1000 watts, balancing speed and energy-efficient cooking.
- Look for intuitive controls, easy-to-read displays, and turntable sizes that suit your common dishes.
- Durable build quality and trusted brands ensure long-term satisfaction with a compact microwave.
Why Choose a Microwave Under 18 Inches Deep?
When I first started hunting for a microwave that wouldn’t dominate my cramped kitchen counter, depth was the biggest hurdle. Most standard microwaves are close to 20 inches deep—and that extra couple of inches can mean bumping into walls, interfering with shelves, or just overwhelming a small space.
Microwaves under 18 inches deep offer the best of both worlds: enough interior capacity to heat and cook most meals, while fitting comfortably in cabinets or narrow countertops. Plus, many of these models remain powerful, often with wattage comparable to larger counterparts. This means you get fast reheating and efficient cooking without the bulk.
What to Look For in Compact Microwaves
- Dimensions: Depth, width, and height matter, but depth is the toughest limit in many kitchens, so keep it under 18 inches.
- Wattage: At least 700 watts for basic reheating, 900+ watts if you want faster cook times.
- Interior Capacity: Typically 0.7 to 1.0 cubic feet—think through what size plates or containers you usually microwave.
- Features: Sensor cooking, defrost, multiple power levels, easy-to-clean interiors, and child lock often come in handy.
- Control Panel: Physical buttons vs. touchpads—the choice depends on your preference for tactile feedback and ease of cleaning.
- Brand Reliability: Some compact models come from longstanding, trusted brands. I lean toward those for durability.
Top Compact Microwaves Under 18 Inches Deep
Here are a handful of compact microwaves I’ve tested or researched extensively that keep depth under 18 inches without sacrificing functionality.
| Model | Depth (inches) | Capacity (cu. ft.) | Wattage | Special Features | Price Range |
|---|---|---|---|---|---|
| Panasonic NN-SN67KS | 15.9 | 1.2 | 1200 | Inverter technology, sensor | Mid |
| Toshiba EM925A5A-SS | 15.6 | 0.9 | 900 | Easy-clean interior, mute mode | Budget |
| BLACK+DECKER EM720CB7 | 15.2 | 0.7 | 700 | One-touch buttons, small footprint | Budget |
| AmazonBasics Microwave | 15.8 | 0.7 | 700 | Simple controls, compact size | Budget |
| Panasonic NN-SD372S | 17.3 | 1.2 | 950 | Sensor cooking, child lock | Mid |
How I Tested These Microwaves
When testing compact microwaves, my focus is on how well they fit into tight spots while still heating food evenly and quickly. I typically measure:
- External footprint, especially depth against countertops.
- Interior space relative to common dish sizes.
- Wattage vs. actual cook times for reheating and popcorn.
- Ease of use with controls—can I operate them without peering over or squinting?
- Cleanability: does the interior surface wipe down easily, and can I remove the turntable quickly?
For example, the Panasonic NN-SN67KS impressed me with quick, even heating thanks to inverter technology, despite its very shallow 15.9-inch depth. While pricier than some budget options, it’s worth it if cooking precision matters.
Benefits and Trade-Offs of Going Compact
Benefits
- Saves counter and cabinet space—ideal for small kitchens.
- Lightweight and easy to move or store.
- Often more affordable than larger models.
- Energy-efficient due to smaller interior to heat.
Trade-Offs
- Smaller interior limits the size of containers you can use.
- May lack some advanced features found in full-size models.
- Cooking power and time slight compromises, especially below 700 watts.
- Some models might feel less sturdy than larger microwaves.
If your kitchen has notoriously shallow counters or you want a microwave stashed in a cabinet space, staying under 18 inches in depth is pretty much mandatory. You just have to weigh the size limitations against your typical cooking needs.
How to Measure Your Space Accurately
Before buying, I recommend measuring your available space carefully:
- Use a tape measure to get the countertop or shelf depth where you want the microwave to sit.
- Account for any backsplash or wall protrusions behind the counter.
- Check that you have enough clearance for air vents and the microwave door to open fully.
- If placing under wall cabinets, ensure you have at least 3 inches of clearance above the microwave as recommended by many manufacturers.
Accurate measuring avoids returns or awkward fits.
Checklist: Best Uses for These Compact Microwaves
| Use Case | Recommended Models | Notes |
|---|---|---|
| Small apartments/dorm rooms | BLACK+DECKER EM720CB7, AmazonBasics | Affordable, fits tight spots |
| Homeowners with minimal counter space | Panasonic NN-SN67KS, Panasonic NN-SD372S | Higher power, sensor cooking |
| Occasional microwave users | Toshiba EM925A5A-SS | Simple, reliable, budget-friendly |
| RV and tiny home kitchens | Most models under 16 inches in depth | Lightweight, compact |
| Users needing easy cleaning | Toshiba EM925A5A-SS | Easy-to-clean interiors |
Related reading
- Toaster ovens vs air fryers when counter depth is limited
- When a 4-slice toaster is too wide for your counter
- Compact espresso machines that fit rental counters
- Best quiet air fryers for open studio apartments
- Best compact air fryers for small counters
FAQ
What’s the difference between inverter and regular microwaves?
Inverter microwaves like Panasonic models provide more consistent power by delivering continuous energy at variable levels, allowing even cooking. Regular microwaves cycle power on and off during cooking, which can lead to uneven heating.
Can I fit a large dinner plate in microwaves under 18 inches deep?
Most compact microwaves around 0.7–1.2 cubic feet fit standard dinner plates comfortably, but very large platters or bowls might not fit. It’s best to measure your regularly used dishes against microwave interior width and depth.
Are smaller microwaves less powerful?
Not necessarily. Many compact models pack 900-1200 watts—on par with larger models. However, the smallest microwaves (under 0.7 cubic feet) may drop below 700 watts, which can increase cook times.
How do I clean a microwave with a small interior?
Look for models with easy-clean interiors, such as non-stick or ceramic coatings. Using microwave-safe steam cleaning (a cup of water and vinegar steamed inside) helps loosen grime, making wiping easier, especially in tight spaces.
Is it better to buy a budget compact microwave or invest in higher-end models?
If you mostly reheat leftovers or simple meals, budget models like BLACK+DECKER EM720CB7 are great. For frequent cooking or more features, spending on a Panasonic inverter model pays off with faster, even cooking and longevity.
Finding the right countertop microwave under 18 inches deep isn’t just about size—it’s balancing performance, convenience, and durability. With careful measuring and selecting, your compact microwave can feel like a full-size kitchen upgrade, not a cramped compromise. I’m excited to see how these models help kitchens reclaim precious countertop space without losing microwave power.
