Water Intake Calculator
Calculate your recommended daily water intake
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Enter your weight
Calculate your recommended daily water intake
Related Calculators
References
- World Health Organization (WHO) - BMI Classification
- National Institutes of Health (NIH) - Clinical Guidelines
- Centers for Disease Control and Prevention (CDC) - Healthy Weight
About Water Intake Calculator
How It Works
Daily water needs are calculated at 30-40 ml per kilogram of body weight. This base requirement is adjusted for physical activity, climate, and health conditions to provide a personalized hydration target.
How to Interpret Results
Your result shows the recommended daily water intake. This includes water from all sources including beverages and water-rich foods, which contribute about 20% of total intake.
Health Tips
Drink water throughout the day rather than large amounts at once. Monitor urine color as a hydration indicator (pale yellow is ideal). Increase intake during exercise, hot weather, and illness.
Limitations
Individual hydration needs vary significantly. Overhydration (hyponatremia) is possible but rare, typically occurring in endurance athletes who drink excessive water without electrolytes.
Last reviewed: July 16, 2026
Medical Disclaimer: This calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or qualified health provider with any questions regarding your health.