Water Intake Calculator

Daily Hydration

Weight is converted to kilograms before the hydration estimate.

Formula: liters/day = weight in kg x 0.035 + activity adjustment.

Understanding Water Intake

1. What This Calculator Measures

Water intake estimates daily hydration needs from body weight and activity.

2. How the Calculation Works

The calculator converts weight to kilograms, estimates a base need of 35 ml per kg, and adds activity adjustment.

3. Formula or Rule Used

liters/day = weight kg x 0.035 + activity adjustment.

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