Daily Water Intake Calculator
Calculate how much water you should drink daily based on your weight, activity level, and climate.
Shows results in liters and glasses.
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Recommended Daily Water Intake
Daily water intake depends on body weight, physical activity, and environmental conditions.
Base formula:
Water (liters) = Weight (kg) × 0.033
Activity adjustments:
- Sedentary: Base amount (no adjustment)
- Lightly active: Base + 0.35 L
- Moderately active: Base + 0.5 L
- Active: Base + 0.7 L
- Very active: Base + 1.0 L
Climate adjustments:
- Normal: No adjustment
- Hot climate: Add 0.5 L
- Cold climate: Subtract 0.25 L (you still need water in the cold!)
One standard glass of water = 250 mL (0.25 L)
Factors that may increase your needs: pregnancy, breastfeeding, illness, high altitude, or high-fiber diets. These are general guidelines — listen to your body and consult a healthcare provider for personalized advice.