About the Water Usage Calculator
See where your household’s water goes and roughly what it costs, and try shorter showers or a water-efficient shower head to see the difference.
Water Usage Calculator
Estimate your household’s daily water use and yearly cost from showers, laundry, toilets and garden.
- Enter your numbers
- Results update as you type
- Copy the answer or share the link
Runs in your browser. Your data and files never leave your device.
Results are estimates. Allow for waste, local conditions and supplier guidance before you buy.
Frequently asked questions
How much water does the average person use?
It varies widely by country — from under 150 litres a day in much of Europe and Australia to over 300 litres in parts of the US.
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