Discover how much water your body needs daily with our free Daily Water Intake Calculator. Stay hydrated, boost energy, improve skin health, and support weight loss.
Why Hydration Matters 💧
Water plays a crucial role in almost every function of your body:
Boosts energy & focus – Dehydration can cause fatigue and brain fog.
Improves skin glow – Keeps your skin hydrated and reduces dryness.
Aids digestion & weight loss – Water supports metabolism and helps control appetite.
Flushes out toxins – Supports kidney health and detoxification.
How to Calculate Your Daily Water Needs
The 8-glass rule is too general. Instead, health experts recommend:
👉 Weight-based formula: Your Weight (kg) × 0.033 = Liters of water per day
Example: If you weigh 60 kg → 60 × 0.033 = 1.98 liters (~2 liters).
But this varies if you:
Exercise or sweat a lot → Add 0.5–1 liter.
Live in hot climate → Add 0.5–1 liter.
Drink coffee/alcohol → Add more water to bar
Use Our Free Daily Water Intake Calculator
Instead of manual math, simply try our Daily Water Intake Calculator here. Enter your weight, activity level, and climate, and instantly see your recommended water intake.
👉 Bookmark it and check daily to stay on track!
Fun Facts About Water 🥤
70% of the human body is water.
Even 1–2% dehydration can affect concentration.
Drinking water before meals may help reduce calorie intake.
Tips to Stay Hydrated Easily
✅ Carry a reusable water bottle. ✅ Add lemon or cucumber for flavor. ✅ Use phone reminders to drink water. ✅ Eat water-rich foods (cucumber, watermelon, oranges).
Final Thoughts
Hydration is not just about drinking more water—it’s about drinking the right amount for your body. Use our Daily Water Intake Calculator to make hydration simple and personalized.
Your Total Daily Energy Expenditure (TDEE) is the total number of calories you burn each day. Knowing your TDEE is essential if you want to lose weight, gain muscle, or maintain your weight effectively.
This guide explains:
What TDEE is
How to calculate it using the Mifflin St Jeor formula
How to adjust calories for your fitness goals
FAQs to help you understand calorie needs
What is TDEE?
TDEE is the total calories your body burns daily, including:
Basal Metabolic Rate (BMR) – calories burned at rest
Activity Energy Expenditure – calories burned through movement and exercise
Thermic Effect of Food – calories burned during digestion
📌 Why it matters: If you consume more calories than your TDEE, you gain weight. If you consume fewer, you lose weight.
How to Calculate TDEE
We use the Mifflin St Jeor Equation to first find your BMR:
Use our BMI Calculator to find your healthy weight range. Learn how Body Mass Index works and what your BMI means for your health.
BMI Calculator – Know Your Body Mass Index
Your Body Mass Index (BMI) is a quick and easy way to check if your weight is in a healthy range for your height. While it’s not a perfect measure, BMI can be a useful starting point for understanding your health risks.
This guide explains:
What BMI is and how to calculate it
The standard BMI categories
Health risks associated with each range
Limitations of BMI
What is BMI?
BMI is calculated using your weight in kilograms divided by your height in meters squared (m²).
Formula: BMI = Weight (kg) ÷ [Height (m)]²
📌 Example: If you weigh 70 kg and are 1.75 m tall: BMI = 70 ÷ (1.75 × 1.75) = 22.86
BMI Categories
BMI Range
Category
Health Risk
Below 18.5
Underweight
Possible nutritional deficiency & osteoporosis risk
18.5 – 24.9
Healthy weight
Low risk
25.0 – 29.9
Overweight
Increased risk of heart disease & diabetes
30.0 – 34.9
Obese (Class 1)
High risk
35.0 – 39.9
Obese (Class 2)
Very high risk
40.0+
Obese (Class 3)
Extremely high risk
Why BMI Matters
BMI is linked to overall health risks. People outside the healthy range may face:
Heart disease
Type 2 diabetes
High blood pressure
Joint problems
Limitations of BMI
Doesn’t distinguish between muscle and fat
May misclassify athletes or elderly individuals
Doesn’t account for body fat distribution
📌 Better accuracy tip: Combine BMI with other measures like waist circumference or body fat percentage.
💧 Daily Water Intake Calculator – How Much Water Should You Drink Every Day?
Introduction
Water is essential for life — it makes up about 60–70% of the human body. Yet, most people don’t drink enough of it daily. Staying hydrated supports energy, focus, digestion, and even weight management. But the big question is: How much water do you really need?
The answer is not the same for everyone. Factors like weight, age, activity level, diet, and climate all play a role. That’s why we created a Free Daily Water Intake Calculator to help you find your exact requirement.
(Source: WHO & National Academies of Sciences, Engineering, and Medicine)
Signs You’re Not Drinking Enough Water
Persistent thirst
Dark yellow urine
Fatigue and low energy
Dry mouth and lips
Headaches
Dizziness
If you notice these symptoms, it’s time to increase your water intake.
Can You Drink Too Much Water?
Yes — overhydration (water intoxication) is rare but possible if you drink extreme amounts in a short time. Symptoms include nausea, confusion, and swelling. That’s why balanced hydration is key.
Q1: How many liters of water should I drink daily? Most adults need 2–3 liters daily, but exact needs depend on weight and activity.
Q2: Does tea, coffee, or juice count as water? Yes, but plain water is the healthiest choice. Caffeinated drinks may increase fluid loss.
Q3: Is 4 liters of water a day too much? For most people, 4 liters is safe — but if you’re not active or live in a cool climate, it may be excessive.
Conclusion
Water is life, but how much you need depends on your unique body and lifestyle. Instead of guessing, use our Free Daily Water Intake Calculator to find your personalized hydration needs today.