Free Calculator
Personalized daily water needs based on weight, activity, and climate. Track your intake with an interactive daily tracker.
Fill in your profile and click
Calculate my water needs
--
liters/day
Daily breakdown
--
Glasses (250 ml)
--
US cups (237 ml)
--
Bottles (500 ml)
Today's Tracker
You hit your daily goal. Great work!
0%
hydrated
0 ml
Click a glass to log 250 ml.
0 / 0 glasses
Tap a glass or use buttons
Hydration Tips
Health note: Water needs vary by individual health status, medications, and medical conditions.
These estimates are based on general guidelines from health authorities.
Consult a healthcare professional if you have kidney, heart, or liver conditions.




