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Water Usage Calculator

Estimate household water use from flow rate, duration and frequency.

Enter the details for your calculation

Use the values that match the situation you want to evaluate with the water usage tool. Results update as the inputs change.

Important: Use the inputs that match your situation. Results are estimates based on the values and assumptions entered.
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How to use this calculator

Using the calculator

Enter the values requested above. Estimate household water use from flow rate, duration and frequency.

Reading the result

The result shows household water use from flow rate, duration and frequency.

Results are estimates based on the values entered. Review the Methodology and Calculator Disclaimer for important limitations.