Yes, completely free with no signup required.

Does my data leave my device?

No. All calculations happen in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

シャワー・洗濯・食洗機・屋外使用から月々の水道代を推定。

People in household Water rate (¢/gal)

Daily usage

Showers / person / day Shower length (min) Toilet flushes / person / day Outdoor watering (min/day)

Weekly usage

Baths per week Laundry loads / week Dishwasher runs / week

Enter the number of people in your household and your local water rate per gallon.
Fill in daily activities (showers, toilet flushes, outdoor watering) and weekly activities.
Results update instantly — compare before/after changing habits to find savings.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All calculations happen in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.

Last updated: 2026-05-20 By jarvisbox