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Daily Water Intake Calculator
Calculate your recommended daily water intake based on weight and activity level.
Daily Water Intake Calculator
Enter your weight, daily activity, and climate to estimate your daily water needs.
About this calculator
This calculator estimates daily water needs using a common guideline of ~35 ml per kilogram of body weight, plus extra for activity and hot climates. This is a general recommendation and may not be appropriate for everyone. Speak with a healthcare professional for personalized advice.