Water Intake Calculator
Estimate your daily water needs from body weight.
Daily water2.45 L
≈ Glasses (250 ml)10
For general information only. Not medical advice — consult a professional.
How to use
Enter your values above and read the result instantly.
How it works
Everything is computed locally in your browser — nothing is uploaded.
Frequently asked questions
Is it free?
Yes, completely free with no limits.
Is my data private?
Yes, all processing happens in your browser.