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Bathtub water usage and cost

Bathtubs are handy to have at home, specially if you have small children.

Still, the water usage of a bathtub can be considerable so it is wise to get to know how much water does a bathtub hold and the water cost of filling up a bathtub

How much water does a bathtub hold

On average, a bathtub holds between 130 to 190 liters on water. That is around 80 gallons.

If you want to know how much water your bathtub is using, you just need to take some simple steps.

Bathtub water usage and cost

If you want to know how much water your bathtub is using, you just need to take some simple steps:

> First make sure that nobody else is using water at home (e.g. tap water, washing machine,…)

> Record your meter reading water consumption value

> Fill up your bathtub (have a nice and relaxing bath… with lots of bubbles)

> Record your meter reading water consumption value again

> Substract the values

Note that most probably you will have two water meter readers at home, one for cold water and another one for hot water. You will need to record both meter reading values, before and after filling your bathtub.

How to read a water meter

Before moving ahead, and because one image is worth a thousand words, we recommend to watch this YouTube video where we explain how to read a water meter.

How to read a water meter

Bathtub water cost calculator

Once you know your bathtub water consumption, you can use the calculator below to estimate the water usage and water cost over a year.

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

 

To use the calculator you need to know how much you are paying for cubic meter, gallon or any other water measurement unit that it is used in your country.

If you don’t have this information, have a look to the information we provide below.

How much does water cost

On your contract or water bill you should be able to find how much you are paying per every cubic meter or every gallon of water you use.

The water cost will depend on what country or city you live.

According to this water prizes survey article, the areas with the most expensive water are North America and Western Europe. While areas like South Asia, Middle East and North Africa have the cheapest water. 

On to this other european cities water prize article, it can be appreciated the big prize difference between countries in Europe. From Italy with the cheapest water cost and 0.40 euro per cubic meter to Norway with the most expensive water at 5.51 euro per liter.

Liters to US gallons calculator

We know that not everyone uses liters so if you are from the US you can use this calculator to convert liters to US gallons.

 

Liters to UK gallons calculator

Equally, if you are from the UK you can use this calculator to convert liters to UK gallons.

 

Water usage calculators

A few other examples from our ‘Water usage and water cost calculators‘ page that may be of your interest:

How to use less water at home

We have a page dedicated to explain how to save water at home.

As an example, see below a few examples and videos on how to use less water at home and save money.

How to install a shower water flow regulation valve

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

Water flow regulation valve

Save water by using the dishwasher

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

Dishwasher electricity and water usage

How to install a water saving tap aerator

You may want also to have a look this YouTube video where we explain how much water does a tap aerator save and how to install a water saving tap aerator.

Water saving tap aerator

Proven ways to save water at home

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. 

Proven ways to save water at home

The importance of water conservation

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.

Water conservation calculator

If we could reduce our bathtubs water 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 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 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.
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