Water Intake Calculator
Estimate your recommended daily water intake based on weight and activity.
Recommended daily water intake
2.50liters
A general guideline — individual needs vary with climate, health conditions, and diet.
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About this tool
Get a general daily water intake recommendation based on your body weight and activity level — a simple guideline for staying adequately hydrated.
How to use this tool
- 1
Enter your body weight
Type your weight in kilograms.
- 2
Choose your activity level
Select sedentary, lightly active, or very active.
- 3
Read your recommendation
See your estimated daily water intake in liters.
Frequently asked questions
- Does this include water from food?
- No — this is a guideline for fluid intake specifically. Roughly 20% of daily water intake typically comes from food.
- Should I drink more in hot climates?
- Yes — heat, humidity, and altitude all increase fluid needs beyond this general guideline.
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