What Is BMR?
Basal Metabolic Rate (BMR) represents the number of calories your body burns at complete rest to maintain essential functions such as breathing, circulation and cell production.
Why BMR Matters
Understanding BMR helps estimate calorie requirements, create nutrition plans and support weight management goals.
How BMR Is Calculated
This calculator uses the Mifflin-St Jeor equation, one of the most accurate formulas for estimating resting energy expenditure.
BMR vs Daily Calorie Needs
BMR represents calories burned at rest. Total daily calorie needs are higher because they include physical activity and exercise.
Factors That Affect BMR
Age, gender, body weight, height, muscle mass and genetics all influence metabolic rate and calorie expenditure.
Practical BMR Example
A 35-year-old person weighing 75 kg and measuring 175 cm may have a BMR of approximately 1,650 to 1,750 calories per day.
Using BMR for Weight Management
BMR provides a useful starting point for calculating calorie deficits, calorie surpluses and long-term nutrition strategies.
Using This BMR Calculator
Enter your age, weight, height and gender to estimate your basal metabolic rate and resting calorie requirements.