Get a daily water goal in litres and glasses, adjusted for exercise and hot weather.
What is the Water Intake Calculator?
How much water should you drink a day? This hydration calculator gives a simple daily target based on your body weight (about 33 ml per kg), extra water for exercise, and more for hot weather.
How to use the Water Intake Calculator
- Enter your weight in kilograms.
- Add how many minutes you exercise each day.
- Pick your climate and read your daily water goal in litres and glasses.
Frequently asked questions
Is 8 glasses a day enough?
It is a good start, but bigger or more active people usually need more. This tool personalises the number.
Does tea or food count?
Yes. Fruits, vegetables, milk and tea all add to your daily fluids.
This water intake calculator is 100% free, needs no signup and runs in your browser, so your data stays private.
Last updated: · By NodifyTech