The right microwave size depends on your needs: Small (15-20L/0.5-0.9 cu ft) for singles/basic reheating; Medium (20-30L/1.0-1.6 cu ft) for 2-4 people/family meals; and Large (30L+/1.7+ cu ft) for families or cooking large dishes. Key factors are your available kitchen space, the size of your biggest dishes (measure your largest plate!), and if you'll use it for simple reheating or more complex cooking like baking.
When figuring out what size microwave you need, measure the height, width and depth of your current microwave or the space on your countertop or shelves you want it to occupy. Account for the following: 1 inch of ventilation space between the microwave and the wall behind it.
In general, the higher the wattage, the more cooking power you get for faster cooking, more powerful heating and often a wider range of settings and features to work with.
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.
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.
The 20 litres of capacity and 255mm glass turntable can even handle large plates and standard dishware.
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.
The generous 17 litre capacity can fit any round dinner plate with ease, and an easy to use 30 minute timer meaning you can select the ideal time and get to cooking.
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.
Issues with the door switch, internal fuse, magnetron, diode, high-voltage capacitor, and electronic control board are common causes of microwave malfunctions, requiring repair or replacement by a technician.
Countertop models will likely range between $50 and $500 dollars. On the lower end of the scale, you can expect a $50 microwave to be smaller and limited to simple heating and defrosting capabilities with only 600 to 800 watts of power — perfect for keeping fast food warm.
A 1,000-watt microwave will cook quickly and efficiently, so that's a great baseline. Microwaves with 700 watts or less are slower and may not cook evenly. In general, the higher the wattage, the faster the cooking time.
On average, microwaves use about 600 to 1000 watts of electricity. Using a microwave for 15 minutes per day will use about 6.1 kilowatt-hours of electricity per month and 73 kilowatt-hours of electricity per year. A microwave costs an average of $0.86 to use for a month and $10.36 to use for a year.
Capacity can range from 1.0 to 2.2 cubic feet, with most landing between 1.2 to 1.6 cubic feet. Widths align with standard cabinet widths, usually 24, 27 or 30 inches. Height typically ranges from 17 to 22 inches. Depths range from roughly 20 to 25 inches with the door closed and 30 to 35 inches with the door open.
With normal usage for an average family and good maintenance, a microwave often lasts for 7 to 8 years. If the microwave is used less frequently by a single person or a couple and is well-maintained, the lifespan can increase to up to 10 years.
A larger capacity of at least 25L microwave is suitable for bigger families, while a smaller 15-20L microwave will be sufficient for individuals or small families. Power and Wattage: Higher wattage generally means faster cooking. Choose a microwave with adequate power for your cooking requirements.
How long does a microwave last? A good microwave will last approximately seven years. Of course, there are many variables to consider that can affect this. The more often you use it the shorter the life is likely to be, as is misusing it by putting inappropriate items in it.
Microwave ovens come in three main types: convection, grill, and solo, each offering different cooking capabilities. Solo microwaves are basic models designed for reheating, defrosting, and simple cooking tasks.
A guide to internal microwave capacity
Small microwaves usually offer 15-20 litres of capacity, while medium models range from 20-25 litres. Large microwaves provide 25-32 litres of space, and extra-large models offer 32+ litres, perfect for family cooking.
Things you shouldn't put in a microwave oven
Belaco 800W Microwave Compact Size Microwave Oven with Manual Control, 5 Power Levels, 20L Capacity, Timer Function, Easy Clean Interior Ideal for Home or Office Use.
The 20 litres of capacity and 255mm glass turntable can even handle large plates and standard dishware. Sometimes you just need things to go quickly, without having to hassle with lots of buttons.
Most standard glass casserole dishes are safe for the microwave as long as they don't have any metal details or accents that could cause arcing.
The 1.7 model has smaller interior space at 1.7 cubic feet but the same exterior dimensions as this 1.9 cubic feet microwave.