What microwave wattage is best? Experts reveal all

Sharp SMC1169KS 1.1 cu. ft. 1000W Smart Stainless Steel Countertop Microwave Oven
(Image credit: Future/Alex Temblador)

So you want to buy one of the best microwaves but don't know which wattage is best? Here's the thing: wattage dictates the cooking power of your microwave. The higher it is, the more powerful the appliance is, allowing it to cook foods quicker. A high wattage also gives you more freedom to cook different types of meals. For example, a low microwave wattage is useful for reheating dishes, whereas a higher one is able to cook frozen foods or meals from scratch.

In this guide, I'll talk you through what you need to consider to find the best microwave wattage for you. To make sure my advice is accurate, I interviewed some kitchen appliance and cooking experts to find out exactly what microwave wattage is best—you’ll find their tips below. 

What microwave wattage is best?

Professional chef Scott Groth, creator of the food and recipe blog I’d Rather Be a Chef, told me: "When it comes to wattage, aim for at least 800 watts for decent cooking power. This will get the job done for reheating and basic features. Look to more powerful microwave ovens in the range of 1,000 to 1,200 watts for faster, more even cooking."

Expert commentary by:
Image of chef Scott Groth
Expert commentary by:
Scott Groth

Scott Groth is a a professional chef and the creator of the food and recipe blog I’d Rather Be a Chef. He shares innovative cooking techniques and health-conscious recipes, drawing on his extensive experience in both professional and home kitchens. 

"Higher-wattage microwaves generally cook food quicker and more thoroughly and often come with more bells and whistles," says Groth.

Dennis G, kitchen appliance expert from Comfort Appliance Repair, told me: "When choosing a microwave, wattage is key. For most households, 1,000 watts is the sweet spot—it cooks food quickly and evenly. Smaller households or those with lighter usage can go with 600-700 watts, though it’ll take longer to heat food."

What wattage is best for what size household?

Groth told me, as a general rule, for one to two people: "Between 800-900 watts should suffice for reheating and simple meals. For three to four people, look for 900-1,200 watts to handle larger portions and more diverse cooking."

"The size you need depends on how much you use your microwave," Dennis G told me. "A model between 1.0 and 1.5 cubic feet is versatile enough for families, while compact ones work for single servings. Higher wattage means faster cooking, so if you’re often in a rush, stick to something around 1,000 watts."

How does the wattage affect the speed the food is cooked?

Higher wattage means faster cooking times, Groth told me. "For example, a 1200-watt microwave will cook food significantly quicker than an 800-watt model. This is especially handy when juggling multiple dishes or just wanting your meal ready more quickly."

Expert commentary by:
Image of Dennis G appliance specialist
Expert commentary by:
Dennis G

Dennis G is a kitchen appliance specialist with many years experience in the industry. He is owner and lead appliance expert at Comfort Appliance Repair in Tennessee, USA. (https://www.comfortappliancerepairtn.com/).

Does a higher microwave wattage mean a higher price?

Microwaves with higher wattages often come with a high price tag, too. They generally use more electricity per hour of usage compared with a lower wattage one, but they cook and reheat foods quicker, which potentially reduces the overall time they are in use.

If you're thinking about getting a higher wattage like a 1,200W microwave you can expect to pay from $200 for something like this SHARP SMC2266KS 1200 Watt countertop microwave from Amazon ($209.99)or upward of $300 for this Panasonic 1250W 2.2 cu. ft. microwave ($379.99). This compares with just $71.99 for a Farberware 700W countertop microwave from Amazon.

What type of microwave do I need?

If you're wondering how to choose a microwave then the type you need will depend on how it will be used. Groth told me: "A basic countertop model will do fine if you’re just reheating leftovers or making popcorn. 

"However, if you want to cook more elaborate meals, consider a convection microwave [like the Breville BMO870BSS1BUC1 Combi Wave Microwave] that combines traditional microwave cooking with convection heat for even better results. 

"More advanced features would include a built-in air fryer, steam cooking capabilities and bluetooth connectivity… but it’s up to you to determine if you will use this as a cooking tool or as a reheating tool."

What size microwave is best?

Groth told me: "Here’s the scoop: If you cook for a family or entertain often, a larger model, around 2.0 cubic feet or more, will give you the flexibility you need. For solo cooks or smaller kitchens, something around 1.5 cubic feet might be more manageable. It really depends on your cooking habits and kitchen space. 

"Keep in mind to measure your cabinet or countertop before buying your microwave to ensure that it will fit! Some microwaves are built to be placed on the countertop, over a range (meaning they have ventilation capabilities) or in a built-in cabinet. Ensure that you are buying the appropriate microwave for the space."

Manage the Sharp SMC1169KS 1.1 cu. ft. 1000W Smart Stainless Steel Countertop Microwave Oven through an Alexa Echo.

(Image credit: Future)

FAQs

Why is the right microwave wattage important?

Put simply, the wattage will impact your cooking time and power of your microwave, regardless of the size. So compact microwaves or over-the-range microwaves with the higher the wattage, will deliver more power for cooking your foods quickly. 

This also means that you can cook different types of dish, whereas with low wattage you can only really reheat dishes.

Is higher wattage better for a microwave?

Yes, the higher the wattage the more cooking power of your appliance and the more variety of dishes you can make.

What other features should I look for in a microwave?

"Don’t forget about the features!" Groth told me. "Sensor cooking allows the microwave to automatically adjust the cook time based on the sensors built into the microwave… a neat feature to prevent overcooking or overheating. Preprogrammed settings (presets) are always a favorite, particularly for defrosting, reheating, and popcorn.

"Many microwaves now offer a child lock feature, making them safer for households with small children. I like microwaves with fingerprint resistance and easy-to-clean interiors where everything is simple to wipe down."

Maddy Biddulph

Maddy has been a writer and editor for 25 years, and has worked for some of the UK's bestselling newspapers and women’s magazines, including Marie Claire, The Sunday Times and Women's Health. Maddy is also a fully qualified Level 3 Personal Trainer, specializing in helping busy women over 40 navigate menopause.