Daily Water Intake
3.2 L
≈ 12.9 glasses (250ml)
Breakdown
- Base intake: 2.31 L
- Activity factor: ×1.4
- Climate factor: ×1
Formula: base = weight_kg × 0.033L, adjusted by activity and climate factors.
Water Intake Calculator
Calculate your personalized daily water intake based on body weight, activity level, and climate conditions.
Method
This calculator uses the standard hydration formula: base intake = weight (kg) × 0.033L, adjusted by activity level and climate factors.
How To Use This Calculator
- Enter your body weight in metric or imperial units.
- Select your typical activity level (sedentary to heavy).
- Choose your climate (temperate, hot, or humid).
- Review your daily intake in liters and glasses (250ml each).
- Save your assumptions with a shareable URL, then compare one conservative and one aggressive scenario before acting.
Frequently Asked Questions
Why does activity level affect water intake?
Exercise and physical activity increase fluid loss through perspiration, so more active people need more water to stay hydrated.
How does climate matter?
Hot and humid climates increase fluid loss through sweating and respiration, requiring higher daily intake.
Is this personalized to me?
This provides a general estimate based on body weight and lifestyle. Individual needs vary by metabolism, diet, and environmental conditions.
Should I drink only water?
No. Other beverages and water-rich foods (fruits, vegetables) count toward hydration. This tool estimates pure water intake as a baseline.
Is this tool free and private to use?
Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Do these tools replace medical guidance?
No. These outputs are general fitness estimates — not medical advice.
Can I switch between metric and imperial units?
Yes. Every tool supports both systems and remembers your preference in localStorage.
Disclaimer
This water intake estimate is for general guidance only and should not replace personalized medical advice. Consult a healthcare provider for individual hydration needs.