Find a microwave that actually fits
Enter your cabinet or counter dimensions — we calculate manufacturer-required ventilation clearances for 696 models so you know what fits before you buy.
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Physical Specs
Required Space
Looking to Replace an Old Microwave?
Have a discontinued GE, Kenmore, Whirlpool, LG, or other legacy model? We've catalogued 100+ popular discontinued models with replacement recommendations that fit your exact cabinet dimensions — plus parts sources if you need to repair the old one.
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Popular guides
All guides →Best Dorm Microwaves
Compact, affordable, college-approved sizes
Standard Microwave Dimensions
Typical sizes by type — with clearances
Best Microwaves Under $100
Budget picks that still do the basics well
Built-In Cutout Sizes
24, 27 & 30-inch openings explained
Fits a 12-Inch Plate
Turntables big enough for real dinner plates
Fits Under a Cabinet
Height + vent clearance that fits the gap
Zero-Clearance Hinges
Doors that need no side-swing space
24-Inch Microwaves
Countertop & built-in for compact openings
Best for One Person
Right-sized for solo households
1000-Watt Microwaves
The wattage package cook times assume
Why ventilation clearances matter
Every microwave manufacturer publishes required clearances — the minimum breathing room the unit needs around it for safe operation. Most people ignore them. The result: overheating, voided warranties, and microwaves returned because the door hits the wall.
A typical countertop microwave needs 3 inches on each side and 3 inches on top. That means a 20-inch-wide unit requires a 26-inch-wide opening. MicrowaveFit does this math for every model, every time.