Water Intake Calculator

Fluid requirements differ between individuals and can be influenced by body size, physical activity, climate, diet and health conditions.

This calculator provides a general estimate using body weight and an activity adjustment. It should not be considered an exact daily requirement.

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Low activityApprox. 30 ml/kg
Moderate activityApprox. 35 ml/kg
High activityApprox. 40 ml/kg
Hot weatherFluid needs may increase

Water needs can be different for people with certain medical conditions or specific fluid restrictions. Follow your healthcare professional's advice when applicable.