Water Intake Calculator

Find out how much water you should drink daily based on your weight, activity, and climate.

How Much Water Should You Drink Daily?

The general recommendation is 35ml per kg of body weight for sedentary individuals, increasing to 50ml/kg for very active people. Hot or humid climates require additional water. This calculator gives you a personalized target.

Factors That Affect Water Needs

Your water requirement depends on body weight, activity level, climate, and individual factors like age and pregnancy. Listen to your body — thirst is a reliable indicator, and urine color (pale yellow is ideal) is a good gauge of hydration.