Hydration Calculator

Stay Hydrated. How Much Fluid Do You Need?

Proper hydration can help you feel and perform your best. However, exactly how much fluid you need each day depends on many factors, including your gender, age and weight, your environment, your health, and your activity level.

In addition, how much you need to drink each day is determined by your overall diet. The Institute of Medicine estimates that Americans can an average of 80% of their daily fluids from drinking water and other beverages and the remaining 20% from food.

Use our hydration calculator to estimate your total daily hydration needs -- including how much you need to drink each day.

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