Calculate your optimal daily water intake based on body weight, activity level, climate, and caffeine consumption. Get personalized hydration targets.
Practical example: 160 lbs, sedentary, temperate, 2 coffees/day. For a office worker, minimal exercise scenario, enter the values that match your situation to get an instant cost estimate.
How much water should I drink per day? General guidance: 0.5-1 oz of water per pound of body weight. A 160-lb person: 80-160 oz/day (10-20 cups). The '8 glasses a day' rule (64 oz) is a minimum baseline, not an optimal target. Active people in hot climates need significantly more. The National Academies recommend 3.7L (125 oz) for men and 2.7L (91 oz) for women as adequate intake from all sources.
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