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Calculate your daily water intake needs — stay hydrated with personalized recommendations.
Daily water needs are based on body weight plus additional fluid for physical activity. The standard recommendation is 35 ml per kg of body weight.
Calculate base water needs
70 kg × 35 ml/kg
= 2,450 ml
Add extra for exercise
30 min ÷ 30 × 350 ml
= + 350 ml
Total daily water intake
2,450 + 350
= 2,800 ml (2.8 L)
Enter your body weight in kilograms.
Enter your age in years (hydration needs change with age).
Enter how many minutes you exercise daily (0 if none).
View your personalized daily water intake recommendation.
Drink consistently throughout the day — don't wait until you're thirsty.
70 kg, 30 years old, 30 min exercise
65 kg, 65 years old, no exercise