Water Intake Calculator
Estimate your daily water intake based on your body weight and personal information.
How is water intake estimated?
This calculator uses a simple body-weight based estimate of approximately 35 ml of water per kilogram of body weight, with an additional amount for higher activity levels.
Your actual fluid needs can vary depending on climate, exercise intensity, sweating, diet, age, health conditions, and other factors.
This calculator provides a general estimate for informational purposes and is not a medical recommendation. People with medical conditions affecting fluid balance should follow advice from their healthcare professional.
Water Intake Calculator
Estimate how much water you may need each day based on your body weight and activity level.
Daily Water Recommendation
An estimated daily fluid intake based on your weight and activity level.
Enter your weight and activity level to estimate your recommended daily water intake.