Health
Water Intake Calculator
Get a simple daily hydration target based on body weight and activity.
Last updated: April 2026
Enter weight to estimate daily water intake.
Why this page gets repeated use
Simple hydration calculators get repeat traffic because people come back to them over and over. They are not exciting, but they solve a real daily question and that is exactly why they work.
This estimate is intentionally basic. It does not replace medical advice for kidney disease, heart failure, sport-specific hydration or illness.
Typical use cases
- daily hydration target
- gym or walking routine
- warm weather planning
- basic wellness check