Calorie Calculator

Calorie Calculator

Your Calorie Report

Gender: --

Age: -- years

Height: -- cm

Weight: -- kg

Activity Level: --

Here’s your personalized daily calorie breakdown:

BMR: -- kcal/day

TDEE: -- kcal/day

Note: These results follow trusted Mifflin-St Jeor formulas recommended by WHO & CDC.
What is BMR?
BMR (Basal Metabolic Rate) means the number of calories your body needs to function at rest (just for breathing, blood circulation, and cell activity).

What is TDEE?
TDEE (Total Daily Energy Expenditure) means the total calories your body needs in a day including all your activities (like walking, working, and exercising).

💡 Based on this, you can decide whether you want to lose weight, gain weight, or maintain your weight 💪

Now you know your protein needs, why not check your BMI or calories too ? Use all our free tools and make better fitness choices!

What Is a Calorie Calculator and Why You Need It?

A calorie calculator helps you know how many calories your body needs every day. It tells you how much energy you need to eat from food to stay healthy.

Your body needs energy to do things like:

  • Walking
  • Working
  • Playing
  • Even sleeping

This energy comes from calories in the food you eat.

Why Knowing Your Daily Calories Is Important?

Many people eat too much or too little. This can cause problems.

If you eat more calories than your body needs, you can gain weight.

If you eat less calories, you may feel weak or even lose muscle.

So, it is important to know:

  • How many calories your body burns
  • How many calories you should eat to reach your goal

Your goal may be:

  • Lose weight
  • Gain weight
  • Stay the same weight

This is where the calorie calculator helps you.

Using the calorie calculator is very easy. Just follow these steps:

  1. Select your gender – Tap on Male or Female.
  2. Enter your age – For example, type 25 if you are 25 years old.
  3. Type your height – Use centimeters (cm). For example, 172 cm.
  4. Type your weight – Use kilograms (kg). For example, 65 kg.
  5. Choose your activity level – Like sedentary (if you don’t move much) or very active (if you play or exercise daily).
  6. Click the red Get Result button.

Once you do that, the calculator will show:

  • Your BMR (how many calories your body needs when resting).
  • Your TDEE (how many calories you need per day based on your activity).

BMR = Basal Metabolic Rate
This is the number of calories your body uses for:

  • Breathing
  • Blood flow
  • Staying alive (even if you do nothing)

TDEE = Total Daily Energy Expenditure
This means the number of calories you need to:

  • Stay active
  • Walk, work, play, or exercise

Your TDEE changes based on how active you are.

After you get your daily calorie number, you can:

✔ To Lose Weight:

Eat less than your TDEE (cut 300–500 calories).
Example: If your TDEE is 2000 kcal/day, try eating 1500–1700 kcal/day.

✔ To Gain Weight:

Eat more than your TDEE (add 300–500 calories).
Example: If your TDEE is 2000 kcal/day, try eating 2300–2500 kcal/day.

✔ To Maintain Weight:

Eat the same as your TDEE.
This helps you keep your weight stable.

How Many Calories Do I Need Per Day?

It depends on many things:

Here are some examples:-

Person TypeActivity LevelCalories Needed (Per Day)
Adult WomanLow1600 to 2000
Adult ManModerate2200 to 2600
TeenagerHigh2800+

 

To get your exact number, use our free calorie calculator above.

Why You Should Track Your Calories

  1. Helps you stay fit and healthy
  2. Stops you from eating too much or too little
  3. Makes weight loss or weight gain easier
  4. Helps in planning meals and snacks

Quick Example

Let’s say you are:

  • A 25-year-old male
  • 172 cm tall, 65 kg
  • You do light activity

Your results may look like this:

  • BMR: 1600 kcal/day
  • TDEE: 2000 kcal/day

If you want to:

  • Lose weight: Eat around 1500–1700 kcal/day
  • Gain weight: Eat around 2200–2400 kcal/day

Frequently Asked Questions

What is a calorie calculator?
A calorie calculator helps you know how many calories your body needs each day. It uses your age, height, weight, gender, and activity level to give you a daily number.
Why should I know my daily calories?
Knowing your calories helps you eat right. It can help you lose weight, gain weight, or stay healthy. It also helps you plan meals better.
What is BMR and TDEE?
BMR means Basal Metabolic Rate. It shows how many calories your body burns when you rest. TDEE means Total Daily Energy Expenditure. It shows how many calories you burn in a full day, including walking, working, and exercising.
Can this calculator help with weight loss?
Yes. When you know your calorie needs, you can eat fewer calories to lose weight. Just make sure to eat healthy food and move your body too.
Is this calorie calculator free?
Yes, the calorie calculator on Rezzfitness is 100% free to use. You can check your calories as many times as you want.

Conclusion

This Calorie Calculator is your simple and smart tool for better health. It tells you:

  • How many calories you need
  • What to eat for your goal
  • How to stay fit

Whether you want to lose fat, gain muscle, or stay healthy, use this tool every week to stay on track.

👉 Try it now and start your healthy journey today!