Calculator/Health Calculators/ Water Intake Calculator

Daily Water Intake Calculator

Water helps regulate body temperature, transport nutrients, lubricate joints, and protect vital organs. This calculator factors in your weight, activity level, and climate to determine your daily recommended water intake. Use it as a guide for healthy hydration habits.

Calculate Daily Water Intake


Enter your actual age
Sedentary (mostly sitting)
Lightly Active (light exercise 1-3 days/week)
Moderately Active (moderate exercise 3-5 days/week)
Very Active (intense exercise 6-7 days/week)
Extremely Active (high-intensity exercise and physical labor)
minutes
Time for cardio exercise or intense activity

Importance of water intake

Water makes up 50-70% of our body and is essential for sustaining life.

  • Temperature regulation - maintaining body temperature through sweat and respiration
  • Nutrient transport - delivering nutrients to cells
  • Waste removal - eliminating toxins through kidneys
  • Joint lubrication - protecting joints and tissues

This calculator considers the following factors:

Basic requirement = Adequate intake by age/gender (AI)
Activity adjustment = Basic amount × activity factor (0.95~1.3)
Climate adjustment = Temperature-based adjustment (±10-20%)
Special situations = Pregnancy (+300ml), breastfeeding (+700ml), fever (+500ml)
												

Q: Do coffee or tea count towards water intake?

A: Yes, they count. However, caffeinated beverages have a diuretic effect, so its good to drink enough pure water.

Q: Is drinking too much water dangerous?

A: Yes, excessive water intake can cause hyponatremia. Avoid more than 1 liter per hour.

Q: How much should I drink during exercise?

A: Its recommended to drink 150-250ml every 15-20 minutes before, during, and after exercise.