Water Intake Calculator
Calculate your recommended daily water intake in ounces, liters, cups, and milliliters based on body weight and activity level.
Enter your body weight above to calculate daily water needs
Frequently Asked Questions
Is the Water Intake Calculator free?
Yes — the Water Intake Calculator is completely free to use with no account or sign-up required.
Is my data private?
Absolutely. This tool runs entirely in your browser. Your text and data are never sent to any server.
Does it work on mobile?
Yes, all tools are designed to be mobile-friendly and responsive.