Daily Water Intake Calculator
Enter your weight and activity level to get a personalized daily water intake recommendation. Proper hydration supports energy, digestion, and health.
Daily Water Intake
Enter values to calculate
How to Use the Water Intake Calculator
1
Enter your weight in kilograms.
2
Select your activity level.
3
View your recommended daily water intake.
Frequently Asked Questions
How is water intake calculated?
A baseline of ~33ml per kg of body weight, adjusted upward for higher activity levels.
Does coffee count toward water intake?
Partially. Caffeinated drinks contribute fluid but also have mild diuretic effects. Plain water is best.
Should I drink more in hot weather?
Yes — increase intake by 500-1000ml on hot days or during heavy sweating.