Water Intake Calculator Hydration Calculator Your Weight (kg/lbs): kg lbs Activity Level: Sedentary (little exercise) Lightly Active (1-3 days/week) Moderately Active (3-5 days/week) Very Active (6-7 days/week) Extremely Active (2x/day training) Climate: Temperate Humid/Tropical Dry/Arid Cold Calculate My Water Needs Your Hydration Plan Did You Know? Water makes up 60% of your body weight Even 2% dehydration affects performance Thirst means you're already dehydrated