Scale to GramsWhy Proper Hydration Matters
Water is essential for virtually every body function — digestion, nutrient absorption, temperature regulation, joint lubrication, and toxin removal. Even mild dehydration (1-2% body weight loss) can impair cognitive function, physical performance, and mood. Proper hydration supports weight management too, as thirst is often mistaken for hunger.
Factors That Affect Your Water Needs
Body weight is the primary factor — larger bodies need more water. Physical activity increases needs significantly (add 500-1000ml per hour of exercise). Hot and humid climates increase water loss through sweat. Altitude, pregnancy, breastfeeding, and illness also increase requirements. Our calculator accounts for weight, activity, and climate.
