Water Intake Calculator

This calculator is designed to help you estimate how much water you should drink per day based on your weight, activity level and environment. It’s a guideline—adjust based on thirst, medical advice, and specific needs.

*This calculator estimates daily water needs using general factors (weight, activity, environment) and is for informational purposes only. Consult a healthcare professional for personalized guidance.
Recommended water intake
ounces/day
Estimated cups/day

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Why Water Matters for Health

Water makes up roughly 60% of the human body and is vital for nearly every biological process — from circulation and digestion to flushing out toxins and maintaining overall balance.

Benefits for Weight Loss

Curbs appetite, making it easier to manage portion sizes and hunger

  • Boosts metabolism, helping you burn more calories naturally

  • Replaces sugary or high-calorie drinks, reducing overall calorie intake

While increased water intake can support weight loss, it’s most effective when paired with healthy eating, regular physical activity, adequate sleep, and — when needed — medically guided weight loss treatments.

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