Find out exactly how much water your body needs every day based on your weight and activity level. Stay hydrated — feel better, look better, think better!
The Water Intake Calculator uses the most widely accepted formula for daily hydration needs:
Base Formula: Daily Water (litres) = Weight (kg) × 0.033
This is then multiplied by an activity factor:
The result is shown in both litres and the equivalent number of 250 ml glasses, making it easy to track throughout your day. Remember to increase this amount further in very hot weather!