BMR Calculator — Basal Metabolic Rate
Your Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at rest — such as breathing, circulation, and cell production. Knowing your BMR is the foundation for understanding your total daily energy expenditure and setting accurate weight loss or gain goals. This calculator uses the Mifflin-St Jeor equation, the most accurate formula recommended by nutrition scientists.
Frequently Asked Questions
BMR (Basal Metabolic Rate) is the number of calories your body burns while completely at rest to maintain vital functions like breathing, circulation, and temperature regulation.