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What Size is the Smallest Microwave?
What Size is the Smallest Microwave? The smallest commercially available microwave in 2026 typically measures around 0.7 cubic feet capacity with exterior dimensions of approximately 17–18″ W x 13–15″ D x 10–11″ H and 700W power. Historical ultra-compact models like the iWavecube reached ~10″ x 10″ x 12″ (under 0.6 cu ft), but current practical options start at 0.7 cu ft for dorms, offices, and small kitchens.
Microwave Size Categories
Microwaves vary by interior capacity and exterior footprint.
- Ultra-Compact: 0.5–0.7 cu ft; rare, limited availability.
- Compact/Small: 0.7–0.9 cu ft; most common for tight spaces, 700–900W.
- Medium: 1.0–1.5 cu ft; standard household.
- Large: 1.6+ cu ft.
Consumer Reports defines small models as ≤0.8 cu ft, ~700W, dimensions 10″ H x 17–18″ W x 13–15″ D.
Dimensions and Capacity Comparison
| Category | Capacity (cu ft) | Exterior Dimensions (approx.) | Wattage | Turntable Size |
|---|---|---|---|---|
| Ultra-Compact | 0.5–0.6 | 15–18″ W x 13–14″ D x 10–14″ H | 600–750W | 9–10″ |
| Compact | 0.7–0.9 | 17–19″ W x 13–15″ D x 10–11″ H | 700–900W | 10–11″ |
| Medium | 1.0–1.5 | 20–22″ W x 15–18″ D x 12″ H | 900–1200W | 12–14″ |
Smaller sizes limit plate fit and speed; physics requires cavity for 2.45 GHz wavelength (~12 cm).
Top Smallest Microwave Models in 2026
Popular compact options per Wirecutter and Consumer Reports:
- Commercial Chef CHM660/CHM770: 0.6–0.7 cu ft, ~17.8″ W x 10.2″ D x 13.7″ H, 700W; budget dorm favorite.
- Toshiba EM976 series: 0.9 cu ft, compact footprint, 900W.
- GE JES1072: 0.7 cu ft; reliable for small spaces.
- Whirlpool WMC20005 (historical): 0.5 cu ft; rare/discontinued.
Discontinued extremes like iWavecube (~10″ cube, 600W) set records but lack current stock.
Explore Consumer Reports’ best small microwaves for tested ratings.
Limitations of Smallest Microwaves
Lower wattage (600–700W) extends cooking time 20–30% vs. 1000W+.
- Fits mugs/small bowls; rarely full plates (turntable ≤10″).
- Ideal for reheating/defrosting; not family meals.
- Demand grows for tiny homes/RVs; market caps at ~0.7 cu ft for usability.
Tips for Choosing Small Size
- Measure counter: Add 2–3″ ventilation.
- Opt 700W+ for speed.
- Verify turntable for dish size.
- Check reviews for evenness/durability.
See Wirecutter’s best microwaves for compact picks.
FAQ
What is the smallest microwave capacity? 0.7 cu ft common; 0.5–0.6 cu ft rare/historical.
Can smallest microwaves fit a dinner plate? No; turntables ~9–10″ vs. 12″+ needed.
Are ultra-small microwaves still available? Limited; most 0.7 cu ft minimum in 2026.
Best for dorms/offices? 0.7 cu ft, 700W models like Commercial Chef.
Why no smaller than 0.7 cu ft? Wavelength physics and practical heating limit extremes.
Final Thoughts
The smallest microwave sizes in 2026 hover at 0.7 cu ft with ~17–18″ width for reliable performance in dorms, offices, or RVs—trading capacity for space savings. Choose based on daily needs; prioritize 700W+ and proven models for efficiency in compact living trends.
Maksuda Khanam is a passionate home appliance expert and the primary author behind KitchenMarts.com
