Free Water Intake Calculator – Daily Hydration Target

Estimate Your Daily Water Intake

The Helperzy Water Intake Calculator gives you a personalized daily water target based on your body weight and activity level. Enter your weight and how active you are, and it returns an estimate in liters and glasses. A common guideline is about 30-35 ml per kg of body weight, adjusted upward for exercise, hot climate, or intense physical work. The calculator applies this formula to give a figure tailored to you rather than the generic '8 glasses' that may be too little or too much for your size. People use it to set a daily hydration goal, to track intake during workouts, and to understand how much more they need on active days. Staying well-hydrated supports energy, focus, and physical performance. This is a general guideline, not medical advice. Individual needs vary with health conditions, medication, and climate. Consult a professional if you have specific health concerns. Everything runs in your browser, so it is instant, free, and private.

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