Calorie Calculator

How This Works

This calculator uses the Mifflin-St Jeor equation, considered the most accurate formula for estimating Basal Metabolic Rate (BMR). BMR represents the calories your body burns at complete rest. Your Total Daily Energy Expenditure (TDEE) is then calculated by multiplying BMR by an activity factor. For weight loss, a 500-calorie daily deficit results in approximately 1 pound of fat loss per week; for muscle gain, a 500-calorie surplus provides the energy needed for muscle protein synthesis.