The new dishwasher models are quite efficient and use quite a low amount of water. 

Still, in case of doubts or if you are considering to purchase a new dishwasher, it is worth to find out the water usage and the water cost.

- How much water does a dishwasher use -

There are two ways to find out a dishwasher water consumption.

Dishwasher water usage

The first one it is to browse on the internet for the dishwasher specifications. It is a simple as to use your favorite browser to search for the dishwasher model followed by ‘specifications’ or ‘ water consumption’.

Dishwasher specifications search

The second way is to take the water meter readings before and after a dishwasher cycle. If you are not sure how to do it, below we are sharing details about how to read a water meter and what a cubic meter of water is.

In any case, once you know how much water does your dishwasher consume and how much you are paying to your water provider for every litre, or gallon,… it is quite simple to calculate the water cost.

According to it’s specifications, our dishwasher uses 2660 litres of water per year. We are paying to our water provider 2 euro per every cubic meter of water we consume. This means that using the dishwasher will add around 5 euro to our yearly water bill.

2660 litres / 1000 = 2,660 cubic meters of water

2,666 cubic meters x 2 euro per cubic meter = 5,32 euro

Water usage and cost calculator

The calculator below can be used to estimate the dishwasher water cost per cycle and per year.

You just need to adjust the values in the PARAMETERS section to your requirements and the calculator will automatically display the RESULTS section.


We know that not everyone uses liters so if you are from the US or UK you can have a look to our water consumption calculators page for calculators that will convert liters to you water units.

Convert liters to US gallons


Convert liters to UK gallons


A few other examples from our Water usage calculators page:

Washing machine electricity usage calculator
Washing machine
Water tap water usage calculator
Water tap
Shower head water usage calculator
Shower head
Toilet water usage calculator

Additional information

If you are interested on learning how to reduce your bathroom’s water consumption, have a look this post and this other video on how to reduce your shower’s water consumption by installing a flow reduction valve.

How to install a flow regulation valve

All our videos can be found in YouTube, in both English and Spanish languages.

Additionally, you may want to have a look the the post where we review what is more efficient, if washing the dishes by hand or using the dishwasher.

Dishwasher electricity and water usage

Water conservation - Save and conserve water

Water conservation can be defined as the decision and the act of using less water

Water conservation both benefit you and the environment

The act of saving and conserving water does benefit you because you will be paying less on your water bills. 

And it also does benefit the environment because conserving water prevents any unnecessary waste of natural resources.

Now, at individual level it may not look worth to try to save a few litres or gallons 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.


For example, if 9000 households would manage to save as little as 5 litres of water per day:

> Collectively, we would be saving over 16,000,000 litres of water per year!

> Collectively, assuming a cost of 2 euro per cubic meter of water, we would be saving nearly 33,000 euro per year.

It is clear that small water savings do really count when looking into the bigger picture.

If you are looking for ideas to save water at home, have a look to this YouTube video were we show some useful tips to reduce the water usage at home and decrease the water bill. 

How to save water at home

We hope that you have found the information on this page informative and of value. 

If so, please consider to share or subscribe to our newsletter.

We dedicate a considerable amount of time and effort to create content and your support and engagement will encourage us to keep moving forward.

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Effiworkx blog

For more useful energy and water saving information and advice, have a look to our blog.

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