Microwave Oven Dimensions Compared

We've all been there — shopping for a microwave, excited about all the buttons and features, only to get home and realize it doesn't fit on the counter. Nothing kills the joy of a new kitchen gadget quite like that moment. So let's chat about microwave dimensions and figure out which size actually works for your life.

Why Should You Even Care About Size?

It sounds boring, I know — you'd rather talk about how to cook the perfect popcorn. But picking the wrong microwave size is like buying shoes two sizes too big — they technically work, but you'll trip eventually. A microwave that's too big crowds your kitchen, and one that's too small will have you eating cereal for the rest of your life because you can't fit a real meal inside.

Small Microwaves: The Tiny Powerhouses

Small microwaves usually measure about 15 to 18 inches wide, 10 inches tall, and 10 to 14 inches deep. They're perfect for dorm rooms, office break rooms, or anyone with a mini kitchen that barely has room for a toaster. My sister once told me she bought one this size for her studio apartment, and it fit perfectly right between her coffee maker and her stack of unpaid bills — exactly where it belonged.

These little guys typically hold around 0.5 to 0.7 cubic feet, which means they're great for reheating coffee or warming up a bowl of soup. But if you try to fit a full-sized casserole dish in there? Good luck — you might as well cook an elephant. Still, for people living solo or with tiny countertops, these are the go-to option.

Medium-Sized Microwaves: The Crowd Favorites

Now we're getting into the sweet spot — medium microwaves are roughly 18 to 24 inches wide, 12 to 14 inches tall, and 15 to 18 inches deep. They offer about 0.7 to 1.2 cubic feet of space, which is honestly the most common size you'll find in households. Think of it as the "Goldilocks" microwave — not too big, not too small, just right.

20L 700W Microwave Oven Black - MS2082F | LG UK

My brother-in-law swears by his medium-sized one for heating up everything from leftover pizza to those frozen meals that only take four minutes. It sits comfortably on a standard kitchen counter without hogging all the space. If you're a family of two or three, this size usually covers all your everyday needs.

Large Microwaves: When You Need Serious Power

Large microwaves can stretch up to 24 to 30 inches wide, stand 16 to 18 inches tall, and go 18 to 24 inches deep. With a capacity of 1.2 to 2.0 cubic feet, these bad boys can handle family-sized portions and even entire Thanksgiving leftovers. This is the microwave you buy when your grandmother asks you to heat up six plates at once — and she's not joking.

These are common in bigger families or homes where cooking for a crowd is the norm. The tradeoff? They take up serious counter real estate. Make sure you measure your space before you fall in love with that sleek stainless steel beauty, because nothing stings like a brand-new microwave sitting in the garage because it won't fit through the kitchen doorway. I've seen it happen, and the disappointment is real.

Stove | Range Clearances Dimensions & Drawings | Dimensions.com

Over-the-Range and Built-In Options

Some microwaves are designed to mount above the stove or fit right into cabinetry, which changes the game entirely. These usually run about 30 inches wide and are built to match standard kitchen dimensions so they blend in seamlessly. It's a clever way to free up counter space while still having all your heating power close at hand.

Built-in models can range from 24 to 30 inches wide and look incredibly sleek when installed properly. The only catch is that installation can be a bit of a project — you might need a professional to help you out. But once it's done, your kitchen looks like it came straight out of a home design magazine.

Under The Cabinet Microwaves

Measure Twice, Buy Once

The golden rule when choosing a microwave is simple: measure your available space before you shop. Grab a tape measure and note the width, height, and depth of the spot where you plan to keep it. Don't forget to leave a bit of breathing room on the sides for ventilation — your microwave needs to stay cool to perform its best.

And remember, the biggest microwave isn't always the best one. Sometimes smaller is smarter, especially if you already have a busy countertop. Choose based on how you actually cook, not on how cool the stainless steel finish looks — though, let's be honest, that matters a little bit too.

So next time you're microwave shopping, take a moment to think about the dimensions, not just the wattage and the preset buttons. Your future self — and your countertop — will thank you for it.