Base Rate Metabolism Calculator

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Basal Metabolic Rate (BMR) Calculator

Your Basal Metabolic Rate (BMR) is the minimum number of calories your body needs to perform its basic, life-sustaining functions, such as breathing, circulation, and cell production, while at rest. It's often referred to as your metabolism. This calculator uses the Mifflin-St Jeor equation, which is widely considered one of the most accurate BMR formulas.

Male Female

Your Basal Metabolic Rate (BMR):

— kcal/day

This is the number of calories your body burns at rest. You will need more calories than this to account for your daily activities. To estimate your total daily energy expenditure (TDEE), multiply your BMR by an activity factor.

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