BMR Calculator

Use this free BMR Calculator to estimate your Basal Metabolic Rate and understand how many calories your body burns at rest.

Knowing your BMR helps you plan weight loss, weight gain, and daily calorie intake more accurately. This calculator uses a widely accepted scientific formula for reliable results.

What is Basal Metabolic Rate (BMR)?

Basal Metabolic Rate (BMR) is the number of calories your body requires to perform essential life-sustaining functions such as breathing, blood circulation, temperature regulation, and cell repair while at rest.

Why is BMR Important?

Your BMR makes up the largest portion of your daily calorie needs. Understanding it allows you to:

  • Set accurate calorie targets for weight loss or gain
  • Create effective diet and fitness plans
  • Understand your metabolism better

BMR Formula Used

This calculator uses the Mifflin-St Jeor equation, one of the most accurate and widely used formulas for estimating BMR.

Frequently Asked Questions

Is this BMR calculator accurate?

This calculator provides a close estimate using scientific formulas. Actual BMR may vary based on genetics, muscle mass, and health conditions.

What is the difference between BMR and TDEE?

BMR is the calories burned at complete rest, while TDEE includes physical activity and daily movement.

How often should I calculate my BMR?

You should recalculate your BMR whenever your weight, age, or activity level changes significantly.