Water Intake Calculator
Daily Goal
2.7 Liters
(~11 glasses)
Water Intake Calculator
Stay hydrated based on your activity and body weight.
Medical Disclaimer: This tool is intended strictly for informational and educational purposes. It does not constitute medical advice or clinical diagnosis. Always consult a certified medical professional or registered dietitian before making significant health, dietary, or fitness modifications.
Next steps: linked calculators
Your measurements stay in local storage so these tools open with the same profile.
02
BMI Calculator
BMI score, WHO standard categories, and healthy weight range.
03
TDEE Calculator
Daily maintenance calories from BMR and activity level.
04
Macro Calculator
Protein, carbs, and fat grams from a calorie target.
📖Clinical Evidence & Scientific Guide•7 min read
Clinical Hydration Protocols: Fluid Balance, Osmoregulation, and Daily Targets
Explore how antidiuretic hormone (ADH) regulates plasma osmolality, why the generic 8-glasses rule fails active populations, and how body mass and exercise duration formulate exact water requirements.
Why Hydration Matters
Proper hydration is essential for temperature regulation, joint lubrication, nutrient transport, and overall cognitive function.
FAQ
- Does exercise change water needs? Yes, you lose water through sweat during exercise and need to replenish it.
- Can I drink too much water? While rare, hyponatremia (water intoxication) is possible. Listen to your body's thirst signals.