Water Intake Calculator Weight (in kg): Activity Level: Sedentary (little or no exercise)Lightly active (light exercise/sports 1-3 days/week)Moderately active (moderate exercise/sports 3-5 days/week)Very active (hard exercise/sports 6-7 days a week)Extremely active (very hard exercise & physical job) Calculate Water IntakeRecommended Daily Water Intake: – liters