household · free Companion App · local in this browser
Low-Flow Fixture Annual Water Savings
Turn two flow rates and a shower habit into gallons saved each year and the money those gallons carry.
Privacy: This App does not send or save your entries. Do not enter passwords, codes, full account numbers, or private identifiers.
Enter your numbers
Enter only the details needed for this task. Check them against the original source.
Your result
Your result will appear here.
Engine self-test
Running golden cases…
Source notes
- U.S. Environmental Protection Agency, WaterSense — WaterSense at Work
WaterSense publishes water-efficiency guidance and fixture specifications for homes and workplaces.
Reviewed 2026-10-10. Household water rates and fixture models differ. Use your own utility bill and fixture documentation.
What this App does not do
This App multiplies the numbers you enter. It does not measure your fixtures, verify a label, or read your water bill.
This free App has no paid features. It does not contact an agency, employer, bank, seller, provider, or other person.