Water intake calculator
How much water should you drink?
Staying hydrated supports your energy, focus and appetite. Here’s a simple daily goal based on your weight and how active you are.
Enter your weight and activity to see your water goal.
Food and other drinks count too, and hot weather or illness can change your needs. This is general guidance, not medical advice. If you have a heart or kidney condition, check with a qualified clinician before changing how much you drink.