Free Water Intake Calculator Online — Calculate how much water you should drink daily
Daily Water Intake Calculator
Calculate how much water you should drink daily based on your weight, activity level, and climate. Proper hydration is essential for energy, digestion, and overall health.
The general recommendation is about 35ml per kg of body weight, adjusted for physical activity and hot climates. This calculator gives you a personalized target in milliliters and glasses.
How much water should I drink per day?
A good baseline is 35ml per kg of body weight. Active individuals and those in hot climates need 20-40% more. This calculator adjusts for both factors.
Does coffee or tea count toward water intake?
Yes, all beverages contribute to hydration, though water is the best choice. Caffeinated drinks have a mild diuretic effect but still provide net hydration.
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