Health tool
Hydration Calculator
Calculate a general daily water intake estimate from body weight and routine.
hydration calculatorwater intakehow much water to drink a day calculator
How To Use Hydration Calculator
Quick notes to help you understand the result before you act on it.
Overview
Use this hydration calculator to estimate daily water intake.
It considers weight, activity minutes, and warmer climates.
Water Intake Estimate
- Base water need is estimated from body weight.
- Activity and hot climate add extra water to the estimate.
Practical Tips
- Hydration needs vary by health, diet, medication, and weather.
- Seek medical advice for kidney, heart, pregnancy, or fluid restriction concerns.
More Calculators
Quick links to related tools and calculator categories.
Related
Same Category
Popular
Categories
FAQ
Common questions about this tool.
How much water should I drink a day?
It depends on body weight, activity, climate, and health. This tool gives a general estimate.
Is this medical advice?
No. It is a general hydration estimate.