Water Intake Calculator PRO
Daily hydration calculator for your body needs
▸ What is daily water intake?
Daily water intake is the amount of fluid your body needs to maintain normal metabolism, energy, and organ function.
How is it calculated?
It is based on the formula: 30–40 ml of water per 1 kg of body weight, adjusted by activity level.
Why is drinking water important?
Water improves metabolism, supports weight management, and helps brain and muscle function.
Important
Water needs depend on climate, diet, and physical activity level.
▹ Why do we need to drink water?
Water plays a key role in the human body: it supports metabolism, regulates body temperature, and maintains organ function.
▹ How much water do you need per day?
Daily water intake depends on weight, activity level, diet, and climate. On average, 30–40 ml per kg of body weight is recommended.
▹ What affects water needs?
- Physical activity — higher activity requires more water;
- Temperature — hot climates increase hydration needs;
- Diet — salty and high-protein foods require more water intake.
Important: Dehydration can reduce energy levels, impair focus, and slow metabolism.
▹ How to use this calculator?
Enter your weight and activity level — the calculator will instantly estimate your daily water requirement.
