Daily Water Intake Calculator
Estimate how much water you should drink each day based on your body weight and activity level. Results in liters, ounces, and cups, following CDC hydration guidance.
BodyStd · https://bodystd.com · 7/30/2026
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Daily Water Intake Calculator
Estimate how much water you should drink each day based on your body weight and activity level. Results in liters, ounces, and cups, following CDC hydration guidance.
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Daily Water Target
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Baseline recommendations follow CDC and U.S. National Academies hydration guidance: CDC water and nutrition.
Frequently Asked Questions
The CDC/NIH baseline is about 2.7 L (91 oz) for women and 3.7 L (125 oz) for men from all beverages and food. This calculator personalizes that to your body weight and activity using the common 35 ml/kg rule plus exercise adjustments.
Disclaimer: This calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition.