Mavis Tools

Health

Water Intake Calculator

Estimate daily water intake from body weight and activity.

About this water intake calculator

Estimate a simple daily water target from weight and activity for general wellness planning.

Mavis Tools is built for quick utility work: paste the input, get the result, and move on. The page is static-first for speed, and the interactive work happens in your browser. That makes it useful for drafts, calculations, debugging snippets, and repeat everyday tasks.

This tool is intentionally focused. It does one job clearly instead of asking for an account or hiding the result behind a long workflow. Bookmark it if you need a fast water intake calculator that works on desktop and mobile.

FAQ

Is this medical advice?

No. Hydration needs vary by person and situation.

Can activity be included?

Yes. Add extra ounces for active minutes.

Is data uploaded?

Yes. The tool runs in your browser, and the input is not uploaded to a server.