Water Intake Calculator
Estimate recommended daily water intake from body weight and exercise.
Liters per day
2.66
US fluid ounces per day
90
Enter your body weight and daily exercise minutes to estimate how much water to drink each day, in liters and US fluid ounces.
How to use
- Enter your body weight in kilograms.
- Enter your daily exercise in minutes.
- See recommended water in liters and ounces.
Frequently asked questions
- How is intake estimated?
- It uses about 33 ml of water per kg of body weight plus extra for exercise; individual needs vary.
- Is this medical advice?
- No. Hydration needs depend on climate and health, so treat this as a rough estimate only.