Water Intake
Get a rough daily water target from body weight, using about 33 ml per kilogram, shown in liters and cups. Needs vary with heat, activity, diet and health, so treat it as a baseline. Informational only, not medical advice.
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💡 Good to know: The "8 glasses a day" rule has little scientific basis; a lot of your water also comes from the food you eat.
Worked example
Water: 2.475 L · ≈ cups: 10.461082
Inputs
- Weight kg
75
Frequently asked
Does coffee or food count?
Foods and other drinks do contribute to hydration; this figure is a total-fluid guide, not water-from-the-tap only.
How big is a 'cup' here?
It converts liters to US cups (about 4.23 cups per liter), so a cup is roughly 237 ml.