Water Usage Calculator
Work out household water usage and cost from a fixture flow rate, minutes used and the number of people.
Work out your usage
Frequently Asked Questions
Flow rate times minutes times people, with cost if you enter a rate.
Use your own, for a period you can actually measure. A calculator like this is only as good as the inputs, and the most common error is using a number that covers a different period or a different set of costs.
No. Everything is worked out in your browser and nothing is sent anywhere or saved.
We do not publish one, deliberately. Benchmarks for these measures vary enormously by sector, stage and how each company defines the inputs, so a number quoted without those definitions tends to mislead more than it helps.