Our calculator uses science-based formulas to estimate daily water needs, taking into account physiological and external factors.
The primary factor is body weight. The standard recommendation is approximately 33 ml of water per 1 kg of weight:
$$Base = Weight \times 0.033$$
During exercise, the body loses fluid through sweat. We add 0.35 L for every 30 minutes of activity:
$$Activity = \frac{Minutes}{30} \times 0.35$$
In hot climates, water needs increase. We add a fixed 0.5 L to compensate for fluid loss due to temperature.
Men generally have higher muscle mass and metabolic rate, so their water needs are approximately 10% higher than the base.
Calculate your daily water needs based on weight, activity level, and climate. Stay hydrated and healthy.
Results are estimates based on standard models. Please verify critical data before taking action. Terms of Use
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