BMR Calculator

About This Tool

Your Basal Metabolic Rate (BMR) represents the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production while at complete rest. Understanding your BMR is the cornerstone of any successful diet plan. Our tool uses the Mifflin-St Jeor equation (the gold standard in accuracy) to calculate your BMR and then estimates your Total Daily Energy Expenditure (TDEE) based on your activity level. Whether you want to lose fat, build muscle, or maintain your current physique, knowing your numbers is the first step. Understanding your body metrics is the first step toward achieving your health and fitness goals. This calculator uses scientifically validated formulas endorsed by health organizations worldwide, ensuring accuracy you can trust. The results provide personalized insights that help you make informed decisions about your diet, exercise routine, and lifestyle choices. Whether you're trying to lose weight, build muscle, or simply maintain a healthy lifestyle, this tool gives you the data-driven guidance you need. It's perfect for fitness enthusiasts, athletes, nutritionists, and anyone committed to improving their health through measurable, evidence-based approaches. Our algorithms are optimized for performance, ensuring instant results even for complex calculations. We are committed to providing free, high-quality tools to help you be more productive.