How Much Water Should You Drink?
Water is essential for nearly every function in the human body. From regulating temperature to supporting digestion and cognitive function, staying properly hydrated is critical for overall health.
This water intake calculator helps you determine how much water you should drink each day based on your body weight and activity level.
Why Hydration Matters
Even mild dehydration can affect your energy levels, focus, and physical performance. Proper hydration supports circulation, nutrient transport, and waste removal.
How the Calculation Works
A common guideline is to drink around 30–40 ml of water per kilogram of body weight. This calculator uses that principle and adjusts it based on your activity level.
Example
If you weigh 70 kg and have a moderate activity level, you may need around 2–3 liters of water per day.
Factors That Affect Water Needs
- Climate and temperature
- Physical activity
- Diet
- Health conditions
Tips to Stay Hydrated
- Drink water regularly throughout the day
- Carry a reusable water bottle
- Eat water-rich foods like fruits
FAQs
How much water should I drink daily?
It depends on weight and activity level.
Can I drink too much water?
Yes, but it is rare for most people.
Does coffee count as water?
Partially, but plain water is best.
Is thirst a good indicator?
Not always, especially during exercise.
How accurate is this calculator?
It provides a general guideline.