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Such measures of expenditure use highly accurate methods and thus TDEE has been set based on solid data rather than the compromise inherent in the Adequate Intake estimations made for water. Energy requirements are strongly evidence-based in each age and gender group based on extensive research which takes into account body size and activity level which are crucial determinants of energy expenditure which must be met by dietary energy intake. We use a rule that expresses water needs in relation to energy requirements in ml/kcal. Of course, these are estimates based on population averages so consulting your physician or nutritionist is always recommended before making changes to your water consumption or exercise routine.Ĭalculating your recommended total daily water intake and thus optimal hydration requires the estimation of your total daily energy expenditure (TDEE) which measures how much energy (in kcal, kilocalories) you expend during a typical day. The outputs of our water intake calculator are in liters, milliliters, cups (equivalent to a standard glass), and ounces of water. Our water calculator will help you easily estimate how much water you need per day including how much of it you will need to drink in the form of fluids (pure water or beverages). Adjustments for climate, excessive sweating & pregnancy.
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