Other Considerations. Microwave capacity is measured in litres (L), and sizes generally range from 25L to 50L. Stick to a smaller model if you'll mostly be using the unit for reheating and defrosting. If you will be using the microwave to cook meals for a large family, it follows that bigger will be more beneficial.
The standard size for a microwave oven, 20 litres is great for smaller families where the microwave is frequently used. These time-saving appliances are perfect for those looking for a microwave that nails all the basics.
Size of Microwaves
When looking at microwave capacity, you will typically find them between 20-40 litres. Generally, the only advantage to a larger one is purely capacity and the ability to place larger dishes in it. If you are purely using it for defrosting and reheating a smaller size would be more than suitable.
Measuring 46.3 cm in depth, 51.7 cm in width and 31 cm in height, this 28-litres capacity microwave oven is suitable for a family of 2 to 4 members, and can be placed in the kitchen cabinet or on the countertop.
The most common microwaves have capacities between 15 and 32 litres, with a typical family sized model ranging somewhere between 20 and 25 litres.
30L Capacity. Available in silver or white. 900 Watts. Dimensions (WxDxH) 495x396x290.
The most common size is in the 1-2 cubic feet range. External dimensions also vary, so always measure the desired location's space (width, depth, and height!) to make sure it can accommodate the dimensions listed on the box. While you're measuring, double check that there's a power outlet nearby.
Most over-the-range microwaves are roughly 30" wide, 17" high and 15" to 17" deep with a closed door. Built-in microwaves typically match standard cabinet dimensions and countertop microwaves come in sizes from compact to extra large. Microwaves are measured by exterior width, height, depth and interior capacity.
Who should buy a 28L microwave? 28L models are perfect for people who need to cook large amounts of food. If you're cooking for a large family, or regularly entertain guests, then a 28L microwave may be a good option. 28L models are also more suitable as a replacement for an oven than smaller microwaves.
STANDARD AND LARGE MICROWAVE DIMENSIONS
Widths can range from about 21 to 25 inches. If you're installing in cabinets, a trim kit will usually bring the width to 27 or 30 inches. Height is usually around 12 to 15 inches. Closed-door depths range from roughly 16 to 20 inches.
25L microwaves are often powerful combination or grill appliances. The extra five litres capacity compared to the most common 20L capacity is immediately noticeable, making 25L models perfect for families or people who regularly use the microwave for more than just basic tasks.
20L Capacity. Available in silver or white. 700 Watts. Dimensions (WxDxH): 440 x 355 x 258mm.
Medium (1.1-1.5-cu ft) | Countertop Microwaves.
The dimensions of the average Australian microwave are 50cm (width) x 30cm (height) x 40cm (depth). Large microwaves may have a width of anywhere between 53cm-63cm, and small microwaves can have a width as small as 38cm.
On average, microwaves range in capacity from 0.7 cu. ft., which is suitable for most dinner plates, to 2.2 cu. ft., which is a better size for bigger cookware. It's important to consider what capacity you need to fit your dishes and suit your cooking needs.
Microwave capacities vary from about 17L to over 32L (more for integrated models). If you are shopping for a family-size microwave, consider models with a capacity of 27L and above.
Available in a variety of sizes, most over-the-range microwaves measure 1.6 cu. ft. or larger, which means you can usually fit a 15" casserole baking dish inside.
Dimensions- W 555 x H 313 x D 459 mm.
Small compact microwaves have a capacity anywhere between 15L to 20L, which is big enough for a standard-size dinner plate.
Measuring Microwaves and Ovens in Litres
The litre measurement for these kitchen appliances basically means that if you could fill them with water, it would take 40 litres, for example, of water to fill it up. Now, the more litres an oven or microwave can hold means that you'll have more space to cook with.