Refrigerator Wattage Guidelines – How Many Watts Does Your Refrigerator Use? (2024)

If you've never considered how much energy your refrigerator uses, it's probably a good time to start. Your refrigerator is one of the biggest appliances in your home, and it uses the most power after your air conditioning unit, washing machine, and dryer.

This is why it’s so necessary to determine how many watts your refrigerator uses, so you can understand and anticipate what your new fridge’s impact will have on your electricity bill. Read on to learn everything you need to know about refrigerator wattage.

Check out our full line of refrigerators here.

How Many Watts Does a Refrigerator Use?

Many factors determine the power or watts your refrigerator uses, including its age, size, and type. For example, a larger fridge will likely use more watts than a small fridge. And a newer model will probably use less power than an older one. In addition, the kitchen's average temperature can affect the refrigerator's cooling system, which can also cause a variation in power usage.

Considering factors such as age, type, and size, a typical home refrigerator can use between 100-400 watts.

How Many Watts Does a Refrigerator Use Per Hour?

Knowing how many watts does a normal refrigerator use per day is important if you’re concerned about energy usage and cost.

Most typical fridges use between 100-400 watts. To find your fridge's wattage, just:

  • Multiply the number of amps listed on the fridge's nameplate by the voltage (usually around 120).
  • Then, because the compressor only runs about 30% of the time, divide the total wattage by 3.
  • This number gives you the average running wattage of your refrigerator per hour.

For example, on average, a fridge with 6 amps and 115 volts uses 230 watts per hour.

  • 0 amps X 115 volts = 690 watts
  • 690 watts divided by 3 = 230 average running wattage per hour

How Many Watts Does a Refrigerator Use Per Day?

To find out how many watts to run a refrigerator, take the average running wattage per hour and multiply that by 24. So, in the example above, the refrigerator uses 230 watts per hour. When multiplied by 24, you see that the watts per day equal 5,520.

  • 230 (average running wattage per hour) X 24 (number of hours in a day) = 5,520 watts per day

FAQs About Refrigerator Wattage

What is the average refrigerator wattage?

The average refrigerator wattage is the average hourly power used by the refrigerator, which considers that the fridge's compressor is turned on only 30% of the time.

Do refrigerators use a lot of electricity?

While most modern models use 25 percent or less energy than refrigerators from the 1970s did, they still use a lot of electricity. In fact, your refrigerator uses the most energy after your air conditioning, washing machine, and dryer.

How much does it cost to run a refrigerator per day?

To calculate how much it costs to run a refrigerator per day, take the number of watts used per day (in our example above, it was 5,520) and divide it by 1,000.


This simple equation will give you the number of kilowatts, which in our example would be 5.52 kilowatts).


Next, find the cost per kilowatt-hour on your electricity bill and multiply that by the number of kilowatts. For instance, if your power company charges $0.15 per kilowatt-hour, then multiply 5.52 kilowatts by $0.15, and that's how much it costs to run a refrigerator per day.

5.52 x $0.15 = $0.82 per day

How much does it cost per month to run a refrigerator?

To calculate how much it costs to run a refrigerator every month, multiply the cost per day times the number of days per month.

$0.82 per day x 30 (average days in a month) = $24.60 (cost per month to run your refrigerator)


While you may have an older, yet fully functioning, refrigerator, it can be worth investigating whether upgrading to a newer model might be something to consider. Not just because of the newer features, but because the annual electricity cost savings may be significant enough to warrant a new fridge. The newer features will be a bonus on top of saving money!


Don't hesitate to contact us if you need help figuring out how much it costs to run your current refrigerator or how much you could save with a new one.

You can always browse our full selection of refrigerators at any time.


Now might be the best time to research energy-saving refrigerators, as summer is the hardest on your electric bill. With your air conditioning running full time, your fridge constantly being opened and closed, and your washing machine and dryer continuously going, it's no wonder your summertime bill is higher. But you can start your journey now to save money!

Refrigerator Wattage Guidelines – How Many Watts Does Your Refrigerator Use? (2024)

FAQs

Refrigerator Wattage Guidelines – How Many Watts Does Your Refrigerator Use? ›

The average home refrigerator uses between 350-780 watts. Some refrigerators are more energy efficient than others, so you'll want to check the label on yours or look it up online to see how much power it consumes.

How many watts does my refrigerator use? ›

How much electricity does a refrigerator use? A home refrigerator's power consumption is typically between 300 to 800 watts of electricity, or between 3 and 6 amps and about 120 volts.

Will a 1500 watt generator run a refrigerator? ›

To start your generator, the motor needs more power to start than it does to run. For example, your 750-watt fridge may have a startup wattage of 1,200 watts. In this case, a 1,500-watt generator would be able to run your refrigerator.

Will 1200 watts run a refrigerator? ›

Power guide: Large and old model refrigerators typically require 200-400 running watts and up to 1,000-1,200 starting watts.

How many watts does it take to run a refrigerator on a generator? ›

Appliance power needs

Refrigerator or freezer - around 1,800 starting watts, 180 watts normal running. Portable radio - 5 watts to 45 watts. Light - 40 watts to 100 watts depending on the wattage is marked on the globe.

Will a 1000 watt inverter run a refrigerator? ›

If an inverter has a 1,000-watt power rating, it can run any and all appliances that consume up to 1,000W. A surge power is the maximum power that the inverter can handle for a short period of time. A refrigerator can take up to 3,000W to start up even if it requires only 300W to work.

Will 500 watts run a refrigerator? ›

Refrigerators, on average, use 300 to 800 watts of electricity, or between 3 and 6 amps and about 120 volts. Remember that refrigerators typically use less wattage than their advertised average wattage.

Will 2000 watts run a refrigerator? ›

Typically, a small full-size refrigerator has a rated power ranging from 500 to 800 watts. Therefore, a power inverter 2000w should be sufficient to meet the normal operation of the refrigerator.

What is the smallest generator to run a refrigerator? ›

The total wattage you need to run a small refrigerator would be 1400 watts, so you would need a generator that provided at least that many watts. Tip: For best results, always use a generator that can comfortably handle all your power needs while using no more than 90 percent of its capacity.

Can I plug a refrigerator directly into a generator? ›

Luckily, you can connect your fridge to a generator to keep your groceries nice and cold. However, there are some things you should take into consideration first, like how much power your fridge requires.

How many watts is a single door refrigerator? ›

In general, A mini refrigerator uses between 70-90 watts and 280-360 starting watts; An average household refrigerator uses between 90-180 watts and 360-720 starting watts; A side-by-side refrigerator uses 180-200 watts and 720-800 starting watts.

What size inverter do I need to run a fridge? ›

An inverter rated at 1500 watts can, therefore, reliably run a refrigerator. To power a refrigerator, you'll need a pure sine wave inverter. In addition, the refrigerator starts with a short burst of electricity that uses 400 to 600 watts, which can be handled by a 1500-watt inverter.

What is the best generator to run a refrigerator? ›

In more than 95% of cases, you're looking at 1,000W or a 3,000W generator. Of course, the best thing is to buy is a inverter generator for home back up. These type of generators are quiet, reliable and produce a pure sine wave, so there safe to run electronic appliances and devices they we use in the home everyday.

How big of a generator do I need to run a full size refrigerator? ›

Sizing the Generator for your Refrigerator:

However, refrigerators and freezers also require an extra surge in power every time the compressor starts, which is often 2-3 times the average running watts. This means that the minimum size generator required for this appliance will be 1,560 watts.

What size generator do I need to run a refrigerator and TV? ›

On average, refrigerators require about 2,200 starting watts, so any generator with at least this much power will work. To be safe, you may want to purchase a generator capable of producing at least 3,000 watts.

Can a portable generator run a refrigerator? ›

For instance, a 2000 watt capacity generator will work effectively with a refrigerator requiring around 1000 watt capacity. Therefore, before using any portable power station for refrigerator, the specifications of the refrigerator must be put into consideration.

Will a 750 watt inverter run a refrigerator? ›

The 750W inverter sold by PowMr is a small and medium-sized power inverter, which can generally run laptops, printers, speakers, routers, portable fans, LED lights, refrigerators, 600W microwaves, mixers and other household appliances.

How many watts does a fridge use in 24 hours? ›

Conventional refrigerators typically have a starting wattage of 800-1200 watt-hours/day, and a running wattage of around 150-watt hours/day.

What size generator do I need to run a refrigerator and freezer? ›

For example, if you want a generator to run a refrigerator and a freezer, the wattage (table 2) of the refrigerator would be 800 and the freezer would be 1,000. To select the correct size generator, you decide if both refrigerator and freezer are to start at the same time. If so, you would need (1,800 X 4) 7,200 watts.

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