The power consumption of a dishwasher depending on factors like its energy efficiency rating, usage frequency, and the model. On average, a domestic dishwasher consumes between 1,000 to 2,500 watts per hour of use. A simple medium size dishwasher consumes about 1-2 kWh per load.

As we know that dishwasher's energy consumption depends on star ratings, size, operating modes in which they can be used.

So let's assume if we run the dishwasher once a day and it takes about an hour to complete a cycle, the monthly power consumption would be between approximately 36 kWh to 72 kWh.

We recently measured the energy consumption of a dishwasher using an energy monitoring device and we conclude that dishwashers consume used .5 kWh for the most optimal and energy-efficient mode available on the dishwasher.

If you are planning to buy a dishwasher, keep in mind how much energy and water it will consume. It is better to choose a dishwasher with energy efficiency.

A standard dishwasher consumes around 355 Kwh in a year. Consume approximately 6.5 gallons of water per cycle.

To get a more accurate estimate for your dishwasher, you can check its energy label or manual, which provides information on its energy usage, you can find the wattage on the compliance label in the dishwasher and then you can below tool to Calculate How much electricity does a dishwasher consume using our dishwasher cost calculator.

Choose Country:
Wattage of Dishwasher:
Average Usage Per Day: h/day
1 kWh(1 unit)Cost:
Daily cost :
Monthly Cost:
Yearly Cost
Daily Energy Usage: kWh/day
Monthly Energy Usage: kWh/month
Yearly Energy Usage: kWh/year

How many kWh does a Dishwasher use?

Let's take an example. Suppose your Dishwasher uses 1000W for 1 hour a day.
So Daily Energy consumption of your Dishwasher 
1000W × 1 hour= 1000W watts.
Monthly Energy consumption of your Dishwasher 
1000W × 1 hour × 30 days = 30,000‬ watts.

Divide by 1000 to convert watts into kilowatt.
1000-watt/1000= 1 kWh
30000-watt / 1000 = 30Kwh
So thus
Daily cost is:- 1*.10=$1
Monthly cost is:- 30*.10=$3

@Assumes electricity cost per kwh .10 cent

How to Save Electricity and Money When Using Your Dishwasher?

You can save electricity spent on the dishwasher, using the below tips:

1.Use the dishwasher at an optimum temperature setting. As you know, heating consumes more power and thus it is best to use a dishwasher in a low-temperature setting.For more information, you can refer to the manufacturer's suggestion in the device manual guide.

2.Avoid using the dishwasher during the summer day. The dishwasher produces heat. it will make your air conditioner works harder so that it will increase the amount of energy you are using.

3.Make sure the dishwasher is full when used, only run a  cycle when your dishwasher is fully loaded.Make a full load of dirty dishes before running your dishwasher to reduce the number of cycles. 
Do not overload the dishwasher, as the water requires space to work effectively.Always load your dishwasher to full capacity as it consumes the same amount of electricity, whether it is underloaded or fully loaded.

4.Clean the dishwasher

Normally the manufacturer's recommended you use a dishwasher cleaner up to three times a year based on regular cycles once a day.

Clean your dishwasher to avoid the smell, clogging and food particles, which reduces the efficiency of your dishwasher.You would never want that strange dish smell coming out of your dishwasher then follow the below step.

The dirt collected inside the dishwasher may also stink. Remove all racks from inside the dishwasher so that you can thoroughly wash the inside of the dishwasher without any obstruction. Use a rag or brush and hot soapy water to clean the interior of the dishwasher.

5.Upgrade your dishwasher, Buy energy saving new model

If we talk about 90's dishwasher, it uses 10 gallons per load and 1.27 kWh energy per hour.
A new Energy Star dishwasher about uses 1.5 gallons per load costs only 0.4 kWh energy per hour.
Newer models of dishwashers use a lot of water. Almost all new dishwashers only use 6 gallons of water per cycle

Dishwasher Safety Precautions

There are many things in every house that you cannot wash in the dishwasher.


Hot water and drying heat can be dangerous for your mixing spoon, causing it to lose its shape.


Like a wooden spoon, hot water will affect the surface of your favorite wooden board.


Do not spoil the china crockery found at your wedding with hot water and detergent. Washing in the dishwasher can damage hand-paint and gold trimmings made on it.


Some of the insulated mugs that are coming in these days are dishwasher safe but if you put every insulated mug in the dishwasher then it will damage the mug. Water will enter between the insulating layer of the mug.


If you are trying to wash a bottle, make sure to remove the label. If you put the bottle in the dishwasher along with the label, it will be stuck into the filter and damage the washer.


Keep your crystal glass and bowl away from the dishwasher. Hot water will crack your crystal. Some crystals are dishwasher safe. Find out if your crystal is safe.
When you wash the dishes by hand, water and soap remains in the bowl or sink and you move the pot around by rubbing it with a cloth or brush. With the help of the dishwasher, you can do this work very easily.
The dishwasher not only saves you time, but it also sanitizes the utensil and also prevents the possible danger from bacteria and germs.

How do dishwashers work?

The dishwasher has several racks to wash the dishes. The utensils are kept in separate racks.
Once all utensils are placed in the rack, the dishwasher pipe has to be connected to the water tap.
In this way, it cleans all the utensils.

So friends! This is just Dishwasher Full Information. I hope you enjoy this article.If you have any kind of question related to the dishwasher, then please comment below. If you want to read similar and informative blogs, then you can follow us.