Water Intake Calculator

Personalised daily hydration target based on weight, activity, and climate.

✓ Free · Instant Results · No Signup · Private Body & Wellness

Weight

Unit

Activity Level

Climate

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About This Calculator

This free water intake calculator provides instant, evidence-based results directly in your browser. No data is sent to our servers — all calculations are 100% private. Results are for educational and informational purposes only and are not a substitute for professional medical, financial, or legal advice.

Last updated: April 2026 · Evidence-based methodology · For educational purposes only

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