Top 48 How Many Volts Does A Microwave Use The 59 Detailed Answer

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Microwave ovens consume power at a rate of 650–1200 watts, which corresponds to a current of 5.4–10 amps at 120 volts AC.The microwaves require a 120 volt, individual, properly grounded branch circuit with a 3 prong grounding type receptacle protected by a 15 or 20 amp circuit breaker or time-delay fuse. Over-the-Range microwave models should always be on a dedicated circuit.The majority of microwaves operate on 220 volts.

Contents

What voltage is needed for a microwave?

The microwaves require a 120 volt, individual, properly grounded branch circuit with a 3 prong grounding type receptacle protected by a 15 or 20 amp circuit breaker or time-delay fuse. Over-the-Range microwave models should always be on a dedicated circuit.

Do microwaves use 110 or 220?

The majority of microwaves operate on 220 volts.

How much power does a microwave use?

On average, microwaves use between 16.4 watts and 49.1 watts per minute, with 23.4 watts being the most common usage. This is based on the average efficiency of a microwave (i.e. 71.29%). You can expect low powered 700W microwaves to use 16.4W, while high powered 2100W microwaves will use closer to 49.1W.

How many volts does a 1000 watt microwave use?

1000 watts, 110 volts.

Can I plug a microwave into any outlet?

Microwaves need a dedicated circuit for safe operation. It’s not unrealistic to see a microwave plugged into a wall outlet, but some models need more power. Large microwaves can draw 1500 watt of power, which requires a dedicated circuit.

Can a microwave be on a 15 amp breaker?

Microwaves require either a 15 amp breaker or a 20-amp breaker, depending on their wattage requirements. Microwaves that use 600 to 700 watts can get by with a 15-amp breaker, but microwaves that use over 700 watts should have a 20-amp breaker.

Does microwave need 20-amp outlet?

The microwave oven needs a dedicated 20-amp, the 120/125-volt circuit to feed it. This will require 12/2 NM wire with a ground. Microwave ovens come in different varieties and sizes. Some are countertop models, and other microwaves mount above the stove.

Does a microwave need to be on its own breaker?

A microwave needs its own breaker to work properly without blowing a fuse or tripping a circuit breaker. These occur when too many appliances run on the same circuit and draw more current than is available.

Is it OK to plug a microwave into an extension cord?

We strongly recommend that an extension cord not be used with a microwave due to potential safety hazards under certain conditions. Your microwave should be plugged into its own properly grounded, dedicated electrical outlet to prevent the flickering of the lights, blowing of a fuse or tripping of a circuit breaker.

Can you run a microwave off a power inverter?

Yes, a 1500-watt power inverter should be able to run a 700-watt microwave without any issues. To be sure, check that the surge power rating of the microwave is also within the inverter’s limits.

Will a 2000 watt generator run a microwave?

Will a 2000 watt generator run a microwave? In general, a common microwave needs around 1000 watts to operate. A 2000 watt generator provides at least 2000 running and 2200 starting watts so you can run your microwave pretty easily.

Can I run a microwave on a generator?

When experiencing a power outage, you can use a gas-powered generator to run various electrical appliances, including a microwave oven. Before attempting to connect the microwave to your generator, you must make sure to size the generator properly, otherwise the microwave will not operate at its full capacity.

What size breaker do I need for a 1000 watt microwave?

Larger 1000-1100 watt microwaves absolutely require a 20 Amp breaker for safe and optimal use. Though a 15 Amp circuit is generally sufficient for lower-wattage (600-700 watt) microwave ovens, a 20 Amp circuit is still the recommended size for safe and reliable use.

How many volts does a TV use?

A TV uses 27 watts of power at 120 volts AC.

How many amps does a 1200 watt microwave use?

But, keep in mind that a 1200 Watt microwave use 10 Amps @120 volts. In order to power such microwave at full power, 2000 watts power inverter combined with a deep-cycle battery is recommended.

What size breaker do I need for a 1000 watt microwave?

Does microwave need dedicated circuit?

Microwave ovens often demand dedicated circuitry, but this isn’t always a necessity. The National Electrical Code requires it for all fixed equipment, so a circuit must be set aside for any built-in oven. Small or older countertop models draw less power than modern full-size units.

Can a microwave and refrigerator be on the same circuit?

According to the 2020 version of the NEC, you can’t power a microwave and refrigerator on the same circuit because each of these appliances requires a dedicated circuit, which is one shared by no other appliances or lights.

Measuring the voltage and current of a microwave oven magnetron

Electric Current through a Microwave Oven – The Physics Factbook

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Electric Current through a Microwave Oven – The Physics Factbook

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Microwave – Electrical Requirements and Breaker Size

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Electric Current through a Microwave Oven

Bibliographic Entry Result

(w/surrounding text) Standardized

Result Cutnell & Johnson. Physics. 1998. “A 1650 W toaster, a 1090 W iron, and a 1250 W microwave oven are turned on in a kitchen. As the drawing shows, they are all connected through a 20-A circuit breaker to an ac voltage of 120 V.” 20 A Energy Through Our Lives. WEEP Education Program. 2002. “The information on the label tells us that the microwave oven needs 120 volts of electricity in the form of alternating current to operate, and draws 5 amps of current during its use.” 5 A GE Manual. Models: GLMB186KS, GLMB186KB, GLMB186KC. Year:2003. Installation Requirements: Power Source 120 AC 60 HZ Line Current 13.6 Amps 1550 W Over Current Protection 15-20 Amps Requires 120 volt, 15-20 amp parallel Working voltage 108-132 VAC 13.6 A Encyclopedia of Science and Technology. McGraw Hill. Vol 11. 1982. “The microwave power, supplied by a magnetron is at a frequency of 2.45 GHz with rated power from 350 to 750 Watts.”
[I = P/V = 750 W/120 V = 6.25 A] [I = P/V = 350 W/120 V = 2.92 A] 2.92 – 6.25 A Frigidaire FAQ’s. “Microwave oven must be plugged into its own 15 ampere circuit.” < 15 A Millions of homes in America are equipped with microwave ovens. Why? Because they cook food incredibly quickly. A microwave oven is an appliance that uses electromagnetic energy to heat and cook foods. A microwave oven uses microwaves. Microwaves are very short radio waves commonly employed in radar and satellite communications. In microwave ovens the most commonly used radio frequency is 2,500 megahertz. When concentrated within a small space, these waves efficiently heat water and other substances within foods. Microwaves cook food rapidly because, unlike conventional ovens, they heat only the food and not the air or the oven walls. That is because radio waves are absorbed by waters and fats. The heat spreads within food by conduction. The microwaves produced pass through most materials easily, but they are absorbed by water. The water molecules begin to vibrate rapidly and produce heat, which in turn cooks the food. In a microwave oven, electricity enters the microwave oven through a series of fuse and safety protection circuits. Setting the oven timer and starting a cook operation extends this voltage path to the control circuits. The control system generates a signal that produces a voltage path to the high-voltage transformer. The high-voltage transformer serves to increase the typical household voltage, of about 115 volts, to about approximately 3,000 volts. This powerful voltage is just what the magnetron tube needs to convert the high voltage into waves of electromagnetic cooking energy. The electric current that passes through a microwave ranges from 5-20 AMPs. If only given power, voltage, and/or resistance, the current can be found by the equations V = IR and P = IV, where I (current) is solved for. Lindsey Tannenbaum -- 2004 Bibliographic Entry Result (w/surrounding text) Standardized Result SHARP Household Microwave Oven Model R-5A50. Assembled in USA of parts made in USA and Imports. Serial No.159776 Manufactured November 1988. SHARP Electronics Corp. MAHWAH NJ 07430. "12. V.A.C. 7.44 kW 60 Hz Single Phase Output 700 W 2450 MHz. Complies with DHHS Radiation Performance Standards 21CFR Subchapter J." 5.8 A Microwave Oven. Encyclopedia.com. 2004. "Typical output power for consumer devices ranges from 650 to 1200 watts." 5.4–10 A Davidson, Homer L. Troubleshooting & Repairing Microwave Ovens USA: McGraw-Hill, 1997: 62. "A home oven should have a reading between 1.6 kV and 4.5 kV (equals 160–450 mA.), while commercial ovens have a higher measurement. The voltage might vary from 2.0 kV to 7.0 kV (200–700 mA) of the current. Any oven that reads above these figures indicate a leaky or shorted magnetron tube (Table 2-1)." 0.160–0.700 A (magnetron tube only) TABLE 2-1 Microwave oven current and HV chart Oven Mfg. Current Mfg. Voltage Litton 160-300 mA 1.9-2.5 kV Sharp 200-450 mA 1.9-3.5 kV Tappan 250-325 mA 1.9-2.2 kV Whirlpool 240-300 mA 2.0-2.5 kV Sanyo 200-270 mA 1.8-2.3 kV 0.160–0.270 A (magnetron tube only) Sprague, Dewey D. A Practical Approach to Microwave Oven Safety. Health Physics Society. 2004. "The high-voltage electrical components (up to 4,000 V DC at 300 mA) are contained in a grounded metal enclosure." 0.300 A (magnetron tube only) Microwave ovens can be found in practically every American household. It is a fast and easy device for reheating food. Though so many people own a microwave, do they know how one works? Microwave ovens use radio waves with a frequency of about 2,500 megahertz to heat food. Water, fats and sugars absorb these radio waves, changing them into heat. One weird thing about radio waves is that not every material will absorb the waves equally. A lot of plastics, glass or ceramics won't absorb them. Metal doesn't work well because it reflects radio waves. This is why conductors are not put in the microwave. Sparking can occur and this could lead to something being burned. My parents used to say, "Uh yeah… that's supposed to happen. It means it's working." So unlike what my parents and probably many American thought when they first purchased a microwave, they can't just stick any container in the microwave oven and expect it to work. Microwave ovens consume power at a rate of 650–1200 watts, which corresponds to a current of 5.4–10 amps at 120 volts AC. To convert power to current, use the equation… P = VI It is stated that if electrical components with voltage up to 4,000 V DC at 300 mA are in contained in grounded metal, then the component is safe to use. Does this go for all microwave ovens, new and old? A reading higher than these numbers means that there may be a leakage, which isn't a good thing and it might not be safe. But then again, how safe are microwave ovens? Is the normal current itself safe? If so, why am I told that to be safe, I should stand far enough away while a microwave is on? (Courtesy of my Earth Science teacher who made the entire class paranoid.) Anna Ng -- 2004

Microwave Wattage Revealed [203 Studied

How many watts does a microwave use? (It’s not as obvious as you might think) Find out here. See which is the most energy efficient microwave, based on 203 models, and use this microwave wattage conversion calculator to adjust recommended cooking times.

Based on 203 models, below you’ll get key microwave wattage and power consumption results, along with useful conversion calculators and insights into energy efficiency (incl. the stand out model).

Spoilers:

Microwave wattage ranges from 600W to 2100W, but 1000W is the most common . However, microwave power consumption is higher than the listed wattage.

. However, microwave power consumption is higher than the listed wattage. On average, microwaves consume between .8416 kWh and 2.9458 kWh of electricity per hour, with 1.4027 kWh being the most common .

. Microwaves are 71.29% efficient , on average, at converting input power into cooking power.

, on average, at converting input power into cooking power. Converting an impressive 92.59% of electricity into cooking power, the 1250W Toshiba ML-EM45PIT(BS) inverter microwave stands out in terms of energy efficiency – check it out on Amazon, here .

Continue reading to get more microwave wattage details including the difference between input and output wattage, how to find the wattage of your microwave, and which type of microwave is most efficient.

You’ll also get a useful Microwave Wattage Conversion Time Calculator to help you convert recommended cooking times for any microwave wattage to suit your microwave’s wattage.

The stats used in this post are based on the microwave wattage of 203 different countertop microwaves. An average input wattage was used to identify the energy efficiency levels. Microwave energy efficiency levels in this post refers to the conversion rate of input power (the max power rating of the microwave, in watts) to output power (the maximum cooking power stated by the appliance, in watts). The “most common wattage” refers to the microwave wattage that is most commonly stocked by retailers, not the most commonly used by consumers.

Microwave wattage

Microwave wattage ranges from 600W to 2100W, with 1000W being the most common.

However, the amount of watts that a microwave actually uses is higher than its stated wattage.

Microwaves use between 841.6W and 2945.8W, with 1402.7W being the most common amount of watts used.

This is based on research into the wattage of 203 countertop microwaves.

Microwave wattage and the amount of watts they actually use are different because the output wattage is different from the input wattage.

Let’s briefly take a look at this in more detail.

Microwave input vs output wattage

Microwave input wattage is the amount of watts that the appliance uses. In other words, it’s the actual power consumption of the appliance.

Microwave output wattage refers to the amount of microwave energy made available for heating. Microwave output wattage is also known as the cooking wattage.

Microwave output wattage is the figure that’s most commonly used. This is the wattage listed in cooking instructions, highlighted most by manufacturers, and referred to in most discussions.

As mentioned, 1000W is the most common microwave wattage (i.e. output wattage). However, the input wattage (i.e. the actual power consumption) of a 1000W microwave is 1402.7W on average.

Microwave input wattage is always higher than the output wattage. This is because microwaves are not 100% efficient at converting electrical energy into microwave energy.

In saying this, however, microwaves are one of the most energy efficient cooking appliances. Let’s take a look at microwave energy efficiency in more detail.

Microwave energy efficiency

Microwaves are 71.29% efficient at converting input power into output power, on average.

In other words: On average, microwaves convert 71.29% of electricity into microwave cooking power.

For example, a 600W microwave actually consumes 841.6W on average.

Some countertop microwaves are more efficient than others.

Modern countertop microwave efficiency can be as low as 54%, in some cases, to 93% and higher in others.

Inverter microwaves are more efficient than conventional microwaves. A key difference is that, instead of using a transformer, inverter microwaves offer more control over the magnetron. This enables greater power control, and therefore, offers more efficient heating.

Microwaves in general are the most efficient cooking appliance. Although, there are occasions where conventional cooking appliances are actually more efficient – more on this in a moment.

Microwaves are more efficient because they cook from the inside out.

Side note: microwaves don’t cook from the center out. The waves reach a depth of approx. 1-2 inches, depending on the power of the microwave. The heat created then transfers throughout the food. Regular microwaves actually heat specific areas (around 3-4 inches apart) of the food, and the areas heated depends on where the food is placed in the microwave. Inverter microwaves, on the other hand, deliver more consistent heating.

As a result, there is less heat and energy wastage from microwaves compared to conventional cooking appliances.

Convection ovens and conventional cookers heat the area surrounding the food, to then cook from the outside in. This is a slower and more inefficient mode of cooking.

In saying this, however, conventional cookers can be a more efficient appliance if you’re cooking a lot of food at one time.

But if you’re cooking or reheating a single bowl of food, for example, a microwave is a more efficient appliance.

Also, it’s worth noting that microwave output wattage is not a key energy efficiency factor.

A 700W microwave is not more efficient than a 1200W microwave. It just means that you’ll have to cook the food for longer.

In the end, you’ll consume a similar amount of power when cooking.

This of course assumes that both microwaves are similar (e.g. they’re both regular microwaves).

Microwaves are becoming increasingly diverse.

Many modern microwaves come equipped with a grill / heating element, which offers more cooking versatility while still delivering energy efficient heating.

Ultimately, when it comes to energy efficiency, the appliance that has the least amount of energy wastage that also meets your needs tends to be the most energy efficient option.

If a microwave is suitable for you, here’s a stand out energy efficient model…

Energy efficient microwave

The 1250W Toshiba ML-EM45PIT(BS) inverter microwave stands out in terms of energy efficiency.

It also has a compelling price and design, along with exceptional reviews and high-tech features.

Check it out on Amazon, here.

This energy efficient microwave converts an impressive 92.59% (71.29% is average) of its input wattage into output power.

With a maximum input wattage of 1350W, this inverter microwave can output 1250W.

This amount of efficient power means that you’ll spend less time heating. The manufacturer even notes that this appliance saves up to 40% on defrosting time.

The smart cooking sensors, the amount of power control, and the energy saving Eco Mode feature are other key factors that made this microwave stand out.

Get more details on this energy efficient microwave, including the price, on Amazon here.

You may be interested in: Dishwasher Wattage [601 Studied | Most Efficient Revealed].

OK, now that we’ve looked at microwave energy efficiency and know the difference between input and output power, let’s take a look at how many watts different sized microwaves use.

How many watts does a microwave use

Microwaves use between 841.6 watts and 2945.8 watts to deliver between 600 watts and 2100 watts of cooking power.

The most common microwave cooking power is 1000W, which uses 1402.7 watts on average.

This is based on research into the wattage of 203 countertop microwaves, and uses the average input to output wattage efficiency of 71.29%.

Retailers tend to categorize countertop microwaves into small and medium size categories. Unfortunately, the size range isn’t standardized across retailers.

Interestingly, the amount of watts that a microwave uses doesn’t vary dramatically across both small and medium size categories.

Small microwaves output between 600 and 2100 watts of cooking power, using between 841.6 watts and 2945.8 watts of electricity. The most common small microwave output wattage is 700W, which uses 981.9 watts on average.

Medium size microwave wattage doesn’t vary quite as dramatically.

Medium size microwaves deliver 800W to 2100W of cooking power, consuming between 1122.2 watts and 2945.8 watts of electricity.

The most common medium sized microwave output wattage is 1000W, which, as mentioned, uses 1402.7 watts on average.

The table below lists the average amount of watts used by a microwave based on its power output (i.e. cooking power).

Microwave wattage (i.e. output wattage / cooking power) Microwave power consumption (i.e. input wattage) 600W microwave 841.6W 700W microwave 981.9W 800W microwave 1122.2W 900W microwave 1262.5W 1000W microwave 1402.7W 1100W microwave 1543W 1200W microwave 1683.3W 1300W microwave 1823.6W 1400W microwave 1963.8W 1500W microwave 2104.1W 1600W microwave 2244.4W 1700W microwave 2384.7W 1800W microwave 2524.9W 1900W microwave 2665.2W 2000W microwave 2805.5W 2100W microwave 2945.8W

Again, the input wattage is based on the average microwave efficiency (i.e. 71.29%) at converting input wattage into output power (which is also listed as watts).

Related: Cost To Run A Microwave [5 Cost Saving Tips].

In case your microwave wattage is not listed above, here’s a useful Microwave Power Consumption Calculator.

Microwave power consumption calculator

Microwave wattage generally refers to the cooking power of a microwave, not its power consumption.

To estimate the power consumption of your microwave, enter the cooking power (i.e. output wattage) into the calculator below. Also, enter your estimated daily usage to see how many watts your microwave uses per hour, day, week and month.

By default, the calculator is pre-populated with the estimated power consumption for a 1000W microwave that’s used for 10 minutes per day at max power.

This calculator estimates the power consumption of a microwave based on the cooking power using the average microwave efficiency (71.29%) at converting input to output wattage.

As mentioned, some microwaves, particularly inverter microwaves, are more efficient than others at converting input electricity into cooking power.

Next, let’s take a look at how you can find the manufacturer’s listed wattage (both the input and output wattage) of your microwave.

How to find the wattage of a microwave

There are several ways to find the wattage of your microwave.

To find your microwave’s output wattage:

Check the plate at the back of your microwave for the listed wattage.

at the back of your microwave for the listed wattage. Check the inside of the microwave door (or the outside in some cases).

(or the outside in some cases). Check the owner’s manual .

. Look online using your microwave’s model number.

using your microwave’s model number. Estimate the wattage using the “time-to-boil test”.

The “time-to-boil test” estimates microwave wattage from how long it takes your microwave to boil 1 cup of ice cold water.

Your microwave is 1000W or more if it boils 1 cup of ice cold water in less than 2 minutes. It’s 800W to less than 1000W if it boils the water in around 2.5 minutes, it’s 650W to 700W or higher if it boils in 3 minutes, and finally if it takes more than 3 minutes then your microwave is likely 300W to 500W.

Finding your microwave’s input wattage is different, but there is some overlap.

To find your microwave’s input wattage (i.e. power consumption):

Check the plate at the back of your microwave for input power (i.e. the maximum wattage that the device can use). This will be higher than the output power, which is also listed in watts.

at the back of your microwave for input power (i.e. the maximum wattage that the device can use). This will be higher than the output power, which is also listed in watts. Check the owner’s manual . Look for the input wattage figure not the output power figure.

. Look for the input wattage figure not the output power figure. Look online using your microwave’s model number. Many online resources don’t make the input wattage easily accessible. You may need to find the owner’s manual online and then search within it to find the power consumption.

using your microwave’s model number. Many online resources don’t make the input wattage easily accessible. You may need to find the owner’s manual online and then search within it to find the power consumption. Estimate the input wattage from the output wattage . On average, microwaves convert 71.29% of their input power into cooking power. So if you know your microwave’s output wattage, you can work out the input wattage yourself or simply use the Microwave Power Consumption Calculator above . However, your microwave may be more or less efficient than average. The next point is the best way to accurately identify your microwave’s actual power consumption.

. On average, microwaves convert 71.29% of their input power into cooking power. So if you know your microwave’s output wattage, you can work out the input wattage yourself or simply . However, your microwave may be more or less efficient than average. Use a multimeter or energy monitor to see how many watts the microwave is using when it’s running. A smart plug, with an energy monitor feature, may be useful, e.g. the one I use is the KASA smart plug (check it out on Amazon, here .

It’s important to know the input wattage of a microwave because it gives you a sense of the impact your microwave is having on your electric bills and carbon footprint.

Now that we know how you can find your microwave’s input wattage, and since we’ve covered how many watts microwaves use on average, next let’s take a look at how much electricity (in kWh) they use. And let’s also put things into perspective by comparing microwave power consumption with the power consumption of other household appliances.

How much electricity does a microwave use (in kWh)

On average, microwaves consume between .8416 kWh and 2.9458 kWh of electricity per hour, with 1.4027 kWh being the most common.

Based on research into 203 microwaves, 1000W microwaves are the most stocked by retailers in the US.

On average, 1000W microwaves consume 0.0234 kWh of electricity (max) every 1 minute.

But is this a lot?

Do microwaves use a lot of electricity

Yes. Microwaves use a lot of electricity.

The listed microwave wattage tends to be less than ¾ of the amount of electricity that the appliance actually consumes.

For example, and as mentioned, a 1000W microwave uses 1402.7W or 1.4027 kWh of electricity per hour, on average.

High powered microwaves use even more electricity, at nearly 3 kWh per hour.

High power microwaves can use more than 3 times the amount of electricity compared to low power microwaves.

So microwaves, particularly the high powered models, use a lot of electricity.

Let’s get some perspective by comparing how much electricity a microwave uses with the electricity consumption of other standard household appliances, and even a Tesla.

Running a 1000W microwave for 10 minutes is equivalent to:

It’s increasingly common to find microwaves in homes that have a considerably higher wattage than 1000W.

However, despite using a lot of electricity, microwaves are very efficient when it comes to cooking.

As mentioned, it’s important to understand the microwave power consumption / input wattage. But it’s particularly important to know the output wattage (i.e. cooking power) of your microwave.

This is because cooking instructions give cooking times for specific wattages. Thinking you have a more powerful microwave than you actually have can lead to undercooked food. This is obviously unsafe and can lead to illness.

An added problem is that you may need to alter cooking times if your microwave wattage is not the same as what is listed in the cooking instructions.

To help ensure you cook your food appropriately use the Microwave Wattage Conversion Time Calculator below.

Microwave wattage conversion

When your microwave output wattage does not match the wattage listed in the cooking instructions, you need to cook your food for a longer period of time.

This is an increasingly common problem due to microwave wattage becoming more and more diverse.

To help ensure that you cook your food safely, here’s how to convert cooking times for microwaves that have different output wattages.

If you don’t want to do the math, skip to the Microwave Wattage Conversion Time Calculator section below.

3 steps to convert microwave cooking times

Divide the microwave wattage listed in the cooking instructions by your microwave wattage. Convert the listed cooking time into seconds, if necessary. Multiply step 1 by step 2.

The result gives you the recommended cooking duration, in seconds, for your microwave.

Here’s the formula:

Your Cooking Time = (Microwave Wattage Listed / Your Microwave Wattage) * Recommended Cooking Time In Seconds

Let’s look at an example, following the 3 steps and using the formula.

Say you have a 1000 watt microwave and the instructions recommend cooking for 3 minutes in an 800W microwave. Here’s how you can convert the cooking time.

Divide 800 (the wattage listed in the cooking instructions) by 1000 (your microwave wattage). This gives you 0.8. Convert 3 minutes (the recommended cooking time listed in the instructions) into seconds. The result is 180. Multiply 0.8 by 180, and you get 144.

This means that the recommended cooking time for your microwave is 144 seconds or 2 minutes 24 seconds.

Here’s how it looks in the formula:

Your Cooking Time = (800/1000)*180

Not interested in doing the math? Use the following Microwave Wattage Conversion Time Calculator.

Microwave wattage conversion time calculator

Use the calculator below when your microwave wattage does not match the microwave wattage listed in the cooking instructions.

This calculator converts recommended cooking times into a cooking time suited to your microwave.

Simply enter the microwave wattage listed in the cooking instructions, your microwave wattage (i.e. the output wattage / cooking power) and the recommended cooking time.

By default, the calculator is pre-populated, converting a 5 minute (300 second) recommended cooking time for a 900W microwave into the corresponding cooking time for a 1250W microwave.

The standard disclaimer: always ensure that your food is cooked thoroughly throughout before consuming it. The calculator / calculations above, your cooking instructions and even your microwave’s output power may not be accurate, so please ensure that your food is safe to eat.

Now that we’ve looked at wattage, conversion times, and how many kWh of electricity microwaves use, let’s take at some frequently asked questions that I came across while researching the energy efficiency of 203 microwaves.

FAQs

The below are common questions that I came across during my research into microwave energy efficiency.

How many watts does a microwave use per minute? On average, microwaves use between 16.4 watts and 49.1 watts per minute, with 23.4 watts being the most common usage.

This is based on the average efficiency of a microwave (i.e. 71.29%).

You can expect low powered 700W microwaves to use 16.4W, while high powered 2100W microwaves will use closer to 49.1W.

1000W microwaves are the most commonly stocked by retailers – these use 23.4W per minute, on average. How many watts does a Danby microwave use? Danby microwaves have a cooking power that ranges from 700W to 1100W, with 1000W being the most common.

Their actual power consumption was not readily accessible, so let’s assume average efficiency.

Danby microwaves use between 981.9 watts to 1543 watts, with 1402.7 watts being the most common usage.

This works out to a power consumption range of 16.4W to 25.7W per minute.

This is based on 19 Danby countertop microwaves – 15 were available on the Danby website as of writing, and 4 were featured on a leading US retailer’s online store. Emerson microwave electricity usage Emerson microwave wattage (i.e. cooking power) ranges from 700W to 1000W, with 900W being the most common.

Based on Emerson’s listed power ratings, Emerson microwave power consumption ranges from 1050 watts (for their 700W model) to 1500W (for their 1000W model), with 1350 watts (for their 900W models) being the most common.

As of writing, Emerson has 4 countertop microwaves available on their website, which was used to get the results above. However, older Emerson microwaves may still be stocked by certain retailers. GE microwave wattage GE microwaves use between 1050W and 1650W to deliver cooking power that ranges from 700W to 1200W.

The amount of watts used by GE microwaves, like all microwaves, is higher than the listed output wattage.

The most common GE microwave cooking power is 1100W. GE microwaves with this cooking power consume between 1600W and 1650W at max draw.

The figures above are based on the specifications of the 40 GE countertop microwaves sourced online from the manufacturer. LG microwave wattage LG microwave wattage (i.e. cooking power) ranges from 700W to 1200W, consuming between 1150W and 1350W of electricity.

This is an impressive power-consumption-to-cooking-power ratio.

LG microwaves in general are particularly energy efficient because their product range features many inverter microwaves.

The LG microwave wattage figures above are based on the specifications for the 14 LG countertop microwaves that are listed by the manufacturer. Magic Chef microwave wattage Magic Chef microwave wattage (i.e. cooking power) ranges from 700W to 1100W, with actual power consumption ranging from 1050W to 1550W.

The most common Magic Chef microwave cooking power is 1000W, which typically uses 1500W of electricity.

These figures are based on the 7 countertop microwaves listed by Magic Chef. How many watts does an Oster microwave use? Oster microwave wattage (i.e. cooking power) ranges from 700W to 1100W.

Unfortunately, information about the amount of watts Oster microwaves use is not readily accessible. However, there is one case where it is.

A 900W Oster microwave uses 1350 watts of electricity.

This is below the average efficiency for microwaves.

As it is not easy to find details on the actual power consumption of Oster microwaves, let’s give them the benefit of the doubt and assume their microwaves reach average efficiency. Now let’s estimate their actual power consumption based on their cooking power.

Oster microwaves use an estimated 981.9 watts to 1543 watts of electricity per hour.

The figures above are based on the cooking power of the 7 countertop microwaves listed by Oster. The average microwave efficiency of 71.29% was used to estimate actual power consumption where this data proved difficult to access. Panasonic microwave power consumption Panasonic microwaves consume 1200 to 1500+ watts of electricity to deliver a microwave cooking power that ranges from 950W to 1300W.

The most common Panasonic microwave cooking power is 1250W, which typically consumes 1460W of electricity (max).

These figures are based on the specifications for the 15 countertop microwaves listed by Panasonic. Samsung microwave wattage Samsung microwave wattage (i.e. cooking power) ranges between 900W and 1000W, which consume between 1600W and 1650W of electricity.

The most common Samsung microwave cooking power is 1000W, which typically uses 1600W of electricity.

Usually, higher cooking power results in higher power consumption. Interestingly, however, Samsung’s 950W microwaves typically consume the most amount of electricity in their range, at 1650W. This is higher than their more powerful 1000W microwaves.

These figures are based on the specifications for the 8 countertop microwaves listed by Samsung, and only relate to microwave cooking (not the additional cooking options, e.g. grilling, available via the appliance). How many watts does a Sharp microwave use? Sharp microwave wattage (i.e. cooking power) ranges from 700W to 1200W.

Unfortunately, the amount of watts that Sharp microwaves use is not readily accessible.

Assuming that they have average efficiency, i.e. they convert 71.29% of their input wattage into cooking power, we can estimate how many watts they use.

Sharp microwaves use an estimated 981.9 watts to 1683.3 watts per hour.

The most common Sharp microwave cooking power is 1000W, which likely consumes an estimated 1402.7W.

These figures are based on the cooking power of the 24 countertop microwaves listed by Sharp. The power consumption figures are estimated from the cooking power listed. Whirlpool microwave wattage Whirlpool microwave wattage (i.e. cooking power) ranges from 700W to 1200W.

The power consumption details for Whirlpool microwaves is not readily accessible in all cases.

900W Whirlpool microwaves use 1350W of electricity, while their 1200W model consumes 1700W.

To estimate the power consumption of the lower powered Whirlpool microwaves, let’s assume that they reach the average efficiency of 71.29%.

700W Whirlpool microwaves use an estimated 981.9 watts of electricity, while their 750W model uses an estimated 1052.1 watts.

Overall, Whirlpool microwaves use between 981.9 watts (estimated) to 1700 watts of electricity to deliver cooking power that ranges from 700W and 1200W.

These figures are based on the cooking power of the 7 countertop microwaves listed by Sharp. Where readily accessible, manufacturer specifications were used. Some figures were estimated, and noted where appropriate above, using the average microwave efficiency at converting input wattage to output wattage.

Final thoughts

Microwave wattage is becoming increasingly diverse and can be a confusing topic.

I hope that the Microwave Wattage Conversion Time Calculator helps you to conveniently ensure that you’re cooking your meals appropriately in this increasingly diverse appliance category.

And I hope that this post clarified the difference between input and output wattage, and gave you insight into the actual power consumption and efficiency of microwaves.

If you’re in the market for a new microwave, check out the 1250W Toshiba ML-EM45PIT(BS) inverter microwave on Amazon, here.

This model stands out in many ways, but particularly for its energy efficiency. It’ll help keep your electric bills and carbon footprint low.

Interesting in knowing what impact your microwave is having on your electricity bills, and how to limit the impact? Don’t miss: Cost To Run A Microwave [5 Cost Saving Tips].

How many watts and volts does this product take. – Q&A – Best Buy

The wattage and voltage is not relevant. It matters however how many amperes (amps) are drawn with the unit turned on and baking. According to the manufacturer this unit uses about 900W, 110V and draws 13 amps. If tracing the wiring from where the unit is plugged in to the breaker box reveals a 20 Amps circuit breaker you should be fine (in theory). If power cord/prongs of the unit gets hot after in use or if the circuits breaker trips then the electrician needs to upgrade your breaker/wiring. Lastly, a dedicated electrical line should not be required if your breaker is 20 Amps or more.

Answered by estefan

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