💧 Daily Water Intake Calculator
Enter your details to calculate your ideal daily water consumption.
How Much Water Should You Drink Daily?
The amount of water your body needs depends on your weight, activity level, and climate. This Daily Water Intake Calculator helps you determine exactly how much water you should drink to stay hydrated, improve metabolism, and boost overall health.
Doctors generally recommend that a person should drink: 35 ml of water per kg of body weight. In US units, this becomes: Half of your body weight in ounces.
Daily Water Intake Formula
Metric:
Water (ml/day) = Weight (kg) × 35
US System:
Water (oz/day) = Weight (lbs) × 0.67
Why Is Water Important?
- Helps digestion and nutrient absorption
- Boosts metabolism and weight loss
- Keeps skin glowing
- Improves brain function and mood
- Regulates body temperature
- Flushes toxins and improves kidney health
Factors That Increase Water Requirements
- Hot climate: You lose more water through sweat
- Workout / exercise: Body needs more hydration
- High protein diet: Kidney needs more water
- Pregnancy / breastfeeding: Water needs increase
- Alcohol consumption: Causes dehydration
Recommended Daily Water Intake Chart
| Weight (kg) | Water Needed (Liters) |
|---|---|
| 50 kg | 1.75 L |
| 60 kg | 2.10 L |
| 70 kg | 2.45 L |
| 80 kg | 2.80 L |
| 90 kg | 3.15 L |
Frequently Asked Questions (FAQ)
How much water should I drink in a day?
Use the formula: weight (kg) × 35 ml or weight (lbs) × 0.67 oz.
Can I drink too much water?
Yes. Drinking excessive water can dilute sodium levels and be harmful.
Does coffee count as water?
No. Caffeine dehydrates the body — drink extra water with coffee.
Should I drink more water in summer?
Yes, increase intake by 20% in hot climate.