Legal
Privacy policy
Last updated September 2026.
What we store
The calculator saves your inputs (weight, age, activity, etc.) and your daily beverage log in your browser's localStorage only, so the tool remembers your details the next time you visit. This data never leaves your device — it is not transmitted to Daily Water Intake Calculator or any third party, and we have no way to see it.
Analytics
We may use privacy-respecting, aggregated analytics to understand overall traffic (e.g. page views), which does not identify you individually and does not include the health data you enter into the calculator.
Cookies
We do not use advertising or tracking cookies. Any cookies set are strictly functional.
Contact
Questions about this policy can be sent via the contact page. See also our terms & conditions.