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What is a cubic meter of water?

A cubic meter (m3) of water is the equivalent of 1000 liters of water.

1m3 = 1000 liters

The cubic meter is the measurement unit used by the water suppliers to calculate the water cost based on an agreed cost per cubic meter. 

How much is a cubic meter of water

How to read a water meter

Most of the houses have a water meter which measures the amount of water being consumed.

If you are able to understand the value displayed by the meter you can calculate the water cost by yourself.

As an example, the water meter below is showing a water consumption of 1,214 cubic meters (m3) which is the equivalent of 1214 liters.

1,214 cubic meters x 2 euro per cubic meter = 2,5 euro (approx.)

Note that for this calculation we have used the average water cost per cubic meter in Germany, which is 2 euros. Depending on where you live, the water cost can be higher or lower.

How to read a water meter

Water calculator

For those who access the water meter, it is quite simple to figure out the daily water consumption and the total cost. 

The calculator below can be used to estimate the water cost per year based on average daily consumption.


For more useful calculators, have a look at our water consumption calculators page.

Dishwasher electricity and water usage calculator icon
Washing machine electricity and water usage calculator icon
Washing machine
Tap water usage calculator icon
Water tap
Shower water usage calculator icon
Shower head

Water measurement units

As we are using liters as the default measurement unit on this page, we have made available some conversion calculators so people from other countries can easily transform liters into other measurement units.

How to convert liters to US gallons


How to convert US gallons to liters


How to convert liters to UK gallons


How to convert UK gallons to liters


Ways to 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 for your water bills. 

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

Now, at the individual level, it may not look worth trying to save a few liters or gallons here or there. 

Still, every little count 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 liters of water per day:

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

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

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

Proven ways to save water at home

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

Proven ways to save water at home

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