Find out exactly how much water you should drink every day based on your weight, activity level, gender, age, and environment. Stay hydrated, stay healthy.
Fill in your details below for an accurate hydration calculation
Based on your profile & health guidelines
Water is the foundation of good health. Every cell, tissue, and organ in your body needs water to function correctly. Even mild dehydration can affect your energy, focus, and physical performance.
Our calculator uses the latest health guidelines from the WHO, NIH, and leading nutritionists to give you the most accurate daily water recommendation.
Dehydration causes fatigue, poor concentration, and brain fog. Proper water intake keeps you alert and energized all day.
Water aids digestion, prevents constipation, and helps maintain a healthy metabolic rate for overall wellness.
Hydration keeps your skin moisturized, elastic, and healthy, reducing dryness and promoting a natural glow.
Water helps control your body temperature, especially during exercise and in warm environments.
We use a scientifically validated formula trusted by health professionals worldwide:
Base Formula: 35ml of water per kg of body weight
Activity Adjustment: Extra water for exercise (150-500ml per day)
Gender & Age Adjustment: Tailored recommendations for men, women, and adults over 50
This formula ensures your hydration goal is personalized and realistic for your lifestyle.
It depends on your weight, activity, age, and climate. Our calculator gives you a personalized daily goal.
Caffeinated drinks contribute slightly to hydration but are not a replacement for pure water.
Overhydration is rare but possible. Stick to your personalized goal for safe, healthy hydration.
Spread intake evenly: morning, afternoon, evening. Drink extra before/after exercise.