Water Intake Calculator
Estimate daily water intake based on body weight and activity level.
Water Intake Calculator
Enter your values below
lb
min
—Result
Formula & How It Works
Daily Water (oz) = Body Weight (lb) × 0.5 + Activity BonusThis is a general hydration estimate. Individual needs vary by climate, medication, health status, and activity intensity.
Use this calculator as a fast planning tool. Always confirm important financial, medical, construction, or recipe measurements with a qualified source before making final decisions.