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Microwave power consumption and electricity cost
Microwaves are present in many homes.
The electricity usage of a microwave must be taken in consideration when calculation the household electricity usage.
TABLE OF CONTENTS – QUICK NAVIGATION
1. How much electricity does a microwave oven use
1.1. How to calculate power from voltage and current
2. Microwave oven electricity cost calculator
2.1. How much does electricity cost
2.2. Home appliances and devices electricity calculator
3. Microwave electricity usage monitor
4. How to lower the electricity bill of a microwave
5. Microwave electricity usage FAQ
5.1. How many watts does a microwave oven use
5.2. How many watts does it take to run a microwave
5.3. Does a microwave use a lot of electricity
5.4. How much power does a microwave need
6. Electricity measurement units: Watt (W), Kilowatt (kW) and Kilowatt hour (kWh)
6.1. Electricity measurement units calculators
7. Microwaves and energy conservation
How much power does a microwave oven use
The wattage or power consumption can be can be found on the microwave specifications label.
Alternatively, if you are considering to buy a new microwave oven, the wattage can be found on the internet by browser search. Just browse for the microwave oven model followed by ‘wattage’ or ‘ power consumption’.
How to calculate power from voltage and current
If you only know the voltage and current of your microwave, you can calculate the power consumption, in Watts, using the calculator below.
For more information about Power, Voltage and Current, scroll down to the ‘Electricity Measurement Units’ section.
Microwave electricity cost calculator
Once you know the power consumption, the calculator below can be used to estimate the power consumption and the electricity cost of a microwave oven over a period of time.
You just need to adjust the values in the PARAMETERS section to your requirements and the calculator will automatically display the RESULTS section.
For example:
> If your microwave has a power rating of 1500 Watts
> If you use it 30 minutes per day for 320 days per year
> If you are paying 0,217 euro (or dollars or pounds) per every kWh you consume
You will be paying around 52 euro (or dollars, or pounds, or…) per year in electricity costs.
How much does electricity cost
If you don’t know how much you are paying per kWh, you should be able to find the cost per kWh on your electricity contract or in one of the electricity bills.
Alternatively, if don’t have access to your contract or your electricity bills, this website does show the electricity cost per country.
Home appliances and devices electricity calculators
A few other examples from our ‘Electricity usage and electricity cost calculators‘ page that may be of your interest:
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Microwave electricity usage monitor
If you want to know the exact electricity usage of an air conditioner, your best option is to use a plug in power meter to measure the exact power consumption and electricity cost.
Clicking on the image below it will redirect you to the Amazon page where you can have a look to the specifications of the power meter we use for our measurements.
All of our house appliances and devices like the washing machine, the dishwasher, the TV or the printer are plugged to a wall socket.
So, with a power consumption meter we can determine how much electricity our appliances or devices are using and, more importantly, we can measure the electricity usage over a period of time.
Have a look to this YouTube video for more information.
How to lower the electricity bill of a microwave
If you think that your microwave it is using too much electricity, here there are four simple ways to reduce the power consumption of a microwave:
1.- Do not use containers with corners to heat up the food
If you use square or rectangular containers, the food may not heat up evenly and you may find cold spots.
Then, you will have to put back the food in the microwave and use more electricity to have it heated. This is a waste so, if possible, use circular containers to heat up the food in a microwave.
2.- Clean your microwave regularly
Food and liquid spatters do absorb energy causing burnt spots and even damaging your microwave. A decrease on efficiency may lead to an increase electricity usage and a shorter lifespan.
3.- Do not run your microwave empty
When a microwave runs empty, the energy it is absoved by the microwave’s components. If the components sustain damage, it may lead to an increased electricity usage and a shorter lifespan.
4.- Do not fill up your microwave beyond it’s weight limit
If you load the microwave with food and containers beyond it’s weight capacity, the motor that turns the turntable will use more electricity and eventually it will get damaged.
Microwave electricity usage FAQ
How many watts does a microwave oven use
Depending on the model, a microwave oven does us between 700 and 1000 Watts.
Most of the microwave ovens use 800 Watts.
How many watts does it take to run a microwave
It depends on the microwave oven.
The microwave oven should have a label describing the power usage in Watts.
Alternatively, the power consumption of a microwave oven can be found by searching for the specific model on the internet.
Does a microwave use a lot of electricity
The electricity usage of a microwave oven depends on the power rating, the settings and how often it is used.
You can use the calculator from the ‘Electricity cost calculator’ section to estimate the electricity usage.
How much power does a microwave need
It depends on the microwave oven.
The microwave oven should have a label describing the power usage in Watts.
Alternatively, the power consumption of a microwave oven can be found by searching for the specific model on the internet.
Electricity measurement units
Not everybody it is familiar with terms like Watts, Kilowatts or Kilowatt hours so if you would learn more about them, have a look to this YouTube video that we have prepared about this topic.
Electricity measurement units calculators
Or you can have a look to this electricity measurement units calculators to get a better understanding of:
> What is a Watt (W) and how to transform Watts into Kilowatts
> What is a Kilowatt (kW) and how to transform Kilowatts into Kilowatts hour
> What is a Kilowatt hour (kWh) and how to transform Kilowatts hours to other units
> What are Power (P), Voltage (V) and Current (I)
Microwaves and energy conservation
Energy conservation can be defined as the decision and the act of using less energy
Energy conservation both benefit you and the environment
The act of saving and conserving electricity does benefit you because you will be paying less on your energy bills.
And it also does benefit the environment because conserving electricity prevents any unnecessary waste of natural resources.
Now, at individual level it may not look worth to try to save a few watts here or there.
Still, every little counts and if hundreds or thousands of us do save a little every time, it will make an important contribution towards conserving our natural resources.
Energy conservation calculator
If we could reduce our microwaves electricity usage, even a very small amount, it would make a big impact on preserving our natural resources.
For example, if 9000 households would manage to save as little as 10 Watts per day (0,01 kWh) on the microwaves electricity usage, that would add to 32850 Kilowatt hour (kWh) saved per year.
9000 households x 0,01 kWh per day x 365 days per year
=
32,850 kWh saved per year
That is a considerable amount of electricity, but let’s add additional perspectives for clarity:
> Assuming an average cost of 0,18 euro (or dollars, or pounds, or any other currency) per kWh, we would collectively be saving nearly 6000 euro per year.
> To produce 32,850 kWh of electricity it is necessary to use around 17 metric tons of coal or 56 barrels of residual fuel oil.
Have a look to this page for more information about the amount of resources needed to produce electricity.
In any case it is clear that small energy savings do really count when looking into the bigger picture.
Proven ways to save electricity at home
If you are looking for saving electricity ideas at home, have a look to this YouTube video where we provide some useful tips to reduce the electricity usage and decrease the electricity bill.
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