Basal Metabolic Rate Calculator
Calculate your Basal Metabolic Rate using both Harris-Benedict and Mifflin-St Jeor equations.
BMR Explained
Your Basal Metabolic Rate is the number of calories your body burns at complete rest. The Harris-Benedict equation (1919, revised 1984) and the Mifflin-St Jeor equation (1990) are the two most widely used formulas. Mifflin-St Jeor is generally considered more accurate for modern populations.
About This Tool
The Basal Metabolic Rate Calculator helps users determine their ideal daily macronutrient split for various health and fitness goals. Suitable for individuals looking to manage weight, build muscle, or maintain current status.
Input your age, gender, height, weight, and activity level into the calculator. It outputs a detailed breakdown of recommended protein, carbs, and fats intake per day.
Use this tool when planning meals or adjusting dietary habits based on fitness objectives. All calculations are performed in your browser without requiring any sign-up.