Advanced BMR Calculator

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: Easily Calculate Your Basal Metabolic Rate Online

Introduction: What Is a BMR Calculator?

Ever wondered how many calories your body burns at rest? The BMR Calculator is a simple yet powerful tool that helps you determine your Basal Metabolic Rate (BMR)—the number of calories your body needs to maintain basic functions like breathing, digestion, and circulation.

Knowing your BMR is essential for:

At RajkumarLogre.com, you can calculate BMR online in seconds—no complex math required!

What Is Basal Metabolic Rate (BMR)?

Your Basal Metabolic Rate (BMR) is the number of calories your body needs to function while at complete rest. Even when you're sleeping, your body burns calories to keep your organs working.

How Is BMR Calculated?

The most common BMR formula is the Mifflin-St Jeor Equation:

Other formulas like the Harris-Benedict Equation also exist, but the Mifflin-St Jeor is considered more accurate.

How to Use the BMR Calculator Online

Using the BMR Calculator is super easy:

  1. Enter Your Gender – Select male or female.
  2. Input Your Age – Metabolism slows with age.
  3. Add Your Weight (kg/lbs) – Heavier bodies burn more calories.
  4. Provide Your Height (cm/ft) – Taller individuals have higher BMR.
  5. Click "Calculate" – Get instant results!

The tool will display your BMR and estimated daily calorie needs based on your activity level.

Why Use an Online BMR Calculator Instead of Manual Calculation?

While you can calculate BMR manually, an online BMR Calculator offers several advantages:

How BMR Affects Weight Loss, Weight Gain & Health

1. BMR & Weight Loss

To lose weight, you need a calorie deficit (burn more than you eat). Knowing your BMR helps set the right calorie intake.

Example:
- If your BMR is 1,500 calories and you eat 1,300 calories daily, you'll lose weight over time.

2. BMR & Weight Gain

To gain weight (muscle or fat), you need a calorie surplus.

Example:
- If your BMR is 1,800 calories, eating 2,200 calories + strength training helps build muscle.

3. BMR & Overall Health

A low BMR may indicate:

Tracking BMR helps maintain a balanced diet and energy levels.

Real-Life Scenarios: How BMR Impacts Daily Life

Scenario 1: Office Worker Trying to Lose Weight

Scenario 2: Athlete Building Muscle

FAQ: Common Questions About BMR & the Calculator

1. What's the difference between BMR and TDEE?

BMR = Calories burned at rest.
TDEE (Total Daily Energy Expenditure) = BMR + calories burned through activity.

2. Does muscle mass affect BMR?

Yes! More muscle = higher BMR because muscle burns more calories than fat.

3. Can BMR change over time?

Absolutely! Aging, weight loss, muscle gain, and hormones influence BMR.

4. How often should I check my BMR?

Recheck if your weight, activity level, or health changes significantly.

5. Is the BMR Calculator accurate?

It provides a close estimate, but for medical advice, consult a doctor.

6. Can I use BMR for keto or intermittent fasting?

Yes! Knowing your BMR helps adjust macros and fasting windows effectively.

Conclusion: Try the Free BMR Calculator Now!

Understanding your Basal Metabolic Rate (BMR) is the first step toward smarter weight management and better health. Instead of guessing your calorie needs, use the BMR Calculator for instant, accurate results.