Water Intake Calculator
Daily water target based on weight and exercise.
kg
min
How it works
About 33 ml per kg of body weight, plus 0.35 L for every 30 minutes of exercise.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.