Home Fitness and Health Calculator Daily Water Intake Calculator

Daily Water Intake Calculator


Do you typically wait until your mouth is parched and your throat feels like a desert before reaching for a glass of water? It’s a common habit, but it might not be the best approach to stay adequately hydrated. Lets find out how much water intake and learn how to keep our bodies well-hydrated.

Daily Water Intake Calculator

Daily Water Intake Calculator

Moderate (50%)


Your daily water intake: liters

Recommended Daily Water Intake:

  • Sedentary: 30 ml per kg of body weight
  • Lightly active: 35 ml per kg of body weight
  • Moderately active: 40 ml per kg of body weight
  • Very active: 45 ml per kg of body weight
  • Extreme: 50 ml per kg of body weight

Factors Influencing Your Water Needs

The amount of water a person needs daily isn't one-size-fits-all. Several factors come into play, including your level of physical activity, overall health, and the liquid content of your diet. If you're expecting a little one or breastfeeding, you'll need to up your fluid game to support the extra demands on your body.

Understanding the Thirst Signal

Thirst is your body's way of signaling that it's already in the early stages of dehydration. By the time you feel that dry, scratchy throat, your body may have lost 1 to 2% of its precious water content. That's why it's important not to rely solely on your thirst sensation as a hydration indicator.

Thirst is somewhat subjective, and it plays a crucial role in maintaining your body's fluid balance. Make it a habit to drink water regularly to prevent dehydration. As a rule of thumb, a sedentary adult should consume around 1.5 liters of plain water daily. However, the recommended daily total fluid intake (combining water and other beverages) is approximately 3 liters for men and 2.2 liters for women.

Water Facts You Should Know

Here are some noteworthy facts about water:

  • The human body is made up of about 60%-70% water.
  • Contrary to past beliefs, small amounts of beverages like tea, coffee, or even alcohol don't dehydrate you.
  • Drinking a glass of water before a meal not only helps control your appetite but also protects your stomach lining from the effects of digestive acids.
  • Adequate water intake is linked to weight loss, physical fitness, and heart disease prevention, as water is essential for proper fat metabolism.
  • Dehydration can lead to symptoms like headaches, stomachaches, mood changes, and even depression.
  • Cognitive functions such as concentration, memory, and critical thinking decline with just a 2% loss of body water.
  • A severe loss of 22% to 30% of total body water can result in coma and, ultimately, death.
  • Remember, packaged drinking water in bottles has an expiry date.


How much water should I drink daily?

The recommended daily intake of water is around 3 liters (or 100 ounces) for men and about 2.2 liters (or 77 ounces) for women.

Can water help with weight loss?

While water alone may not directly lead to weight loss, combining it with calorie restriction can be beneficial. Studies suggest that drinking two cups of water approximately 20 to 30 minutes before a meal can make you feel fuller and potentially aid in weight loss.

How much water should I drink based on my weight?

A general guideline is to consume about half your weight in pounds in ounces of water daily. For instance, a 200-pound individual should aim for around 100 ounces (approximately 3000 ml) of water per day.

What are the benefits of meeting your daily water intake?

Staying adequately hydrated has numerous advantages, including increased energy, reduced fatigue, improved skin texture, toxin elimination, and maintaining overall bodily equilibrium.

How much water should my child drink?

For children aged 1-3, aim for approximately 4 cups of liquids per day, which can include water or milk. This requirement increases to around 5 cups for 4-8 year-olds and 7-8 cups for older children.



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