BMR Calculator - Calculate Your Basal Metabolic Rate Instantly

Calculate your Basal Metabolic Rate and daily calorie needs

Enable for more accurate calculation with body fat percentage

Your Metabolic Results

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BMR (Calories/day)
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BMR (kJ/day)

Daily Calorie Needs Based on Activity Level:

Activity Level Calories/Day Description
Sedentary 0 Little or no exercise
Lightly Active 0 Light exercise 1-3 days/week
Moderately Active 0 Moderate exercise 3-5 days/week
Very Active 0 Hard exercise 6-7 days/week
Extremely Active 0 Very hard exercise & physical job

Related Tools

BMR Calculator – Calculate Your Basal Metabolic Rate Instantly

The BMR Calculator on RajkumarLogre.com helps you find how many calories your body burns at rest — known as your Basal Metabolic Rate (BMR). This online tool makes it easy to know your daily calorie needs for weight loss, weight gain, or fitness maintenance.

What Is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body requires to function while at complete rest. Even when you’re sleeping, your body burns energy to keep your organs and cells working properly. Understanding your BMR helps create a perfect diet and exercise balance for your fitness goals.

How to Calculate BMR (Formula Explained)

The BMR value is calculated using the Mifflin-St Jeor Equation, which gives accurate calorie estimates:

Alternatively, the Harris-Benedict Formula is also used but is slightly less accurate than the Mifflin-St Jeor equation.

How to Use the Online BMR Calculator

  1. Select your gender (male or female).
  2. Enter your age, weight, and height.
  3. Click on “Calculate” to get your BMR instantly.

Our online BMR calculator also estimates your daily calorie needs based on your activity level — making it more than just a calculator.

Why You Should Use a BMR Calculator

Whether you're tracking calories for TDEE or planning a calorie burn goal, this tool gives you a reliable starting point.

Understanding BMR and Weight Goals

BMR for Weight Loss

To lose weight, consume fewer calories than your BMR plus activity level. Example: If your BMR is 1500 kcal and you eat 1300 kcal, you’ll gradually lose fat.

BMR for Weight Gain

For muscle gain, eat more calories than your daily expenditure. Example: If your BMR is 1800 kcal, aim for around 2200 kcal with strength training.

BMR and Overall Health

Real-Life BMR Examples

Example 1: Office Worker

Example 2: Active Athlete

Frequently Asked Questions (FAQs)

1. What is the difference between BMR and TDEE?

BMR shows calories burned at rest, while TDEE includes physical activities too.

2. Does muscle mass affect BMR?

Yes! More muscle increases BMR since muscles burn more calories than fat tissue.

3. Can my BMR change over time?

Yes, it changes due to age, diet, exercise, and hormonal factors.

4. How accurate is this BMR Calculator?

It provides an accurate scientific estimate, though professional guidance is always best for personalized diet plans.

5. Can I use the BMR Calculator for keto or fasting diets?

Yes! Knowing your BMR helps adjust calorie intake in keto, intermittent fasting, or any diet plan.

Conclusion: Try the Free BMR Calculator Now!

Understanding your Basal Metabolic Rate helps you make smarter health and fitness choices. Use the BMR Calculator today to know your exact daily calorie needs and take control of your body goals effortlessly.