Water Intake Calculator
This calculator is designed to help you estimate how much water you should drink a day based on factors like your weight, activity level, and location. Hydration is a key part of healthy weight loss.*
Sex
Weight
Activity Level
Environment (optional)
*This calculator estimates daily water needs using general factors (age, activity, weight, environment, health). It may not be accurate for everyone—including people with high muscle mass, pregnancy, children, older adults, or those with certain medical conditions and is for informational purposes only. It does not determine eligibility for any Good Life medications. Talk with a licensed healthcare professional for personalized guidance, particularly if you have conditions or medications that affect fluid balance.
Recommended water intake:
onces/day
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estimated cups/day
Why Water Matters for Health
Water makes up about 60% of your body and is essential for nearly every function—supporting circulation, digestion, and toxin removal.
Benefits for Weight Loss
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Boosts metabolism and helps burn more calories
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Reduces appetite, making it easier to eat less
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Replaces high-calorie drinks, lowering total calorie intake
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While drinking more water can support weight loss, it works best alongside balanced nutrition, regular exercise, quality sleep, and—when appropriate—medications that help manage cravings.