Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on the Mifflin-St Jeor equation.
Physical Profile
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Metabolic Analysis
Enter your age, gender, height, and weight to see how many calories your body burns at rest.
About this calculator
Overview
Basal Metabolic Rate (BMR) is the total number of calories that your body needs to perform basic, life-sustaining functions. These basal functions include circulation, breathing, cell production, nutrient processing, protein synthesis, and ion transport. Knowing your BMR is a crucial starting point for weight management.
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Pro Tips
To speed up your metabolism, focus on strength training to build lean muscle mass.
Never consume fewer calories than your BMR without medical supervision, as your body needs this energy for vital organs.
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Fun Facts
"BMR typically accounts for 60% to 75% of a person's total daily energy expenditure."
"Muscle tissue burns more calories at rest than fat tissue, meaning people with more muscle naturally have a higher BMR."
"As you age, your BMR typically decreases—roughly 1-2% per decade after the age of 20."
