Calorie Calculator (Daily Calorie Needs / TDEE)
Calorie Calculator
Calculate BMR and TDEE (daily calorie needs) with flexible units. Pick height in cm or ft/in, weight in kg or lb.
Calorie Calculator – Daily Calorie Needs & TDEE Calculator
Our Calorie Calculator is a free online tool that helps you estimate your daily calorie needs based on your age, gender, height, weight, and activity level. Whether your goal is weight loss, weight gain, or maintaining your current weight, this calculator gives you a clear estimate of your required daily calories.
This tool calculates your Basal Metabolic Rate (BMR) and your Total Daily Energy Expenditure (TDEE) using scientifically accepted formulas. It also provides calorie targets for fat loss and muscle gain, making it a complete daily calorie requirement calculator.
What Is a Calorie Calculator?
A calorie calculator estimates how many calories your body needs per day to function properly. It takes into account:
- Age
- Gender
- Height
- Weight
- Activity level
Your body burns calories even when resting. This is called your Basal Metabolic Rate (BMR). When you include your daily physical activity, you get your TDEE (Total Daily Energy Expenditure).
Our calculator uses the Mifflin–St Jeor equation, one of the most accurate formulas used worldwide for calculating BMR.
How to Use the Calorie Calculator
Using this daily calorie calculator is simple:
- Select your gender.
- Enter your age.
- Choose your height unit (cm or ft/in).
- Choose your weight unit (kg or lb).
- Select your activity level.
- Choose your goal (maintain, lose weight, or gain weight).
- Click “Calculate”.
The calculator will instantly show:
- Your BMR (calories burned at rest)
- Your TDEE (maintenance calories)
- Estimated calorie target for weight loss
- Estimated calorie target for weight gain
- Recommended daily calorie intake based on your goal
Who Should Use This Calculator?
This calorie calculator is ideal for:
- People trying to lose weight
- Individuals planning a diet
- Gym beginners and fitness enthusiasts
- Athletes
- Personal trainers
- Nutrition students
- Anyone who wants to understand daily calorie needs
If you are tracking calories for fat loss or muscle gain, knowing your TDEE is extremely important.
What Is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body needs to perform essential functions such as:
- Breathing
- Blood circulation
- Body temperature regulation
- Cell production
Even if you lie down all day, your body still burns calories. That is your BMR.
What Is TDEE?
TDEE (Total Daily Energy Expenditure) includes:
- BMR
- Daily movement
- Exercise
- Physical activity
TDEE tells you how many calories you need to maintain your current weight.
If you eat:
- More than your TDEE → you gain weight
- Less than your TDEE → you lose weight
- Equal to your TDEE → you maintain weight
Calorie Deficit and Surplus
To lose weight safely, many experts recommend a calorie deficit of 250–500 calories per day.
To gain weight, a calorie surplus of 250–500 calories per day is common.
Our calorie calculator automatically estimates:
- Weight loss calories
- Weight gain calories
- Maintenance calories
Why Use an Online Calorie Calculator?
Manual calorie calculations can be confusing and time-consuming. An online TDEE calculator:
✔ Provides instant results
✔ Uses scientifically accepted formulas
✔ Helps in meal planning
✔ Supports flexible units (cm, ft/in, kg, lb)
✔ Works on mobile and desktop
✔ Free and easy to use
Whether you are planning a diet or starting a fitness journey, understanding your calorie needs is the first step.
Important Note
This calculator provides an estimate. Individual calorie needs may vary depending on:
- Body composition
- Hormonal health
- Medical conditions
- Metabolism differences
For medical or diet-specific advice, consult a qualified healthcare professional.