Water intake calculator -

💧 Free Water Intake Calculator

Water Intake Calculator

Estimate how much water you may need each day based on your body weight, activity level, and climate.

Enter Your Information

Please enter a valid weight.

Body Weight

Daily Activity

🪑 Low
Little Exercise 🚶 Moderate
30–60 min 🏃 High
60+ min 🏋️ Intense
Training

Exercise Duration

Climate

❄️ Cool 🌤️ Normal ☀️ Hot

Main Goal

Your Daily Water Estimate

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estimated water per day

Liters —

Fluid Ounces —

Cups —

250 ml Glasses —

Your Estimated Daily Glasses

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Calculation Summary

Body Weight —

Activity Adjustment —

Climate Adjustment —

Exercise Adjustment —

Enter your information to calculate your estimated daily water intake.

This calculator provides a general estimate for educational purposes only. Individual hydration needs vary depending on health, diet, medications, activity, climate, and other factors. Do not use this estimate as a substitute for medical advice.