Water Intake Calculator
A daily water target based on your body weight and how much you exercise.
kg
min
Daily water3 Labout 12 glasses of 250 ml
How This Is Calculated
We use 35 ml per kg of body weight as a baseline, plus 500 ml for every 30 minutes of exercise. This counts all fluids, and about 20% of your water usually comes from food. Drink more in hot weather, at altitude, or if you sweat heavily.
A simple check: pale yellow urine usually means you're drinking enough. If you have heart or kidney problems, follow your doctor's fluid advice instead.