Water Intake Calculator

Daily hydration target from weight and activity. Daily water (L) = (35 * body weight in kg + (daily exercise in min / 30) * 350) / 1000; Glasses (240 ML) = Daily water in L * 1000 / 240; Fluid Ounces = Daily water in L * 33.814 HOW IT WORKS: Daily water ≈ 35 ml × body weight (kg) + 350 ml per 30 min of exercise FAQ: Do coffee and tea count? Yes — despite the caffeine myth, caffeinated drinks still contribute net fluid. Alcohol, however, is dehydrating. Validation: Inputs must be positive numbers; General guideline (~33 ml/kg + exercise adjustment); Needs vary with climate and health conditions.