Enter your details to get a result.
Ad placement area: after calculator result
About this water intake calculator
Estimate daily hydration needs based on weight, activity and climate. The result is a practical starting point, not a diagnosis or final health recommendation.
FAQ
How much water should I drink per day?
A common rough estimate is around 30–35 ml per kg of body weight, with more needed for heat, sweating and activity.
Is this water calculator medical advice?
No. It is a simple educational estimate and does not replace professional medical advice.