BMR Calculator
Basal Metabolic Rate — calories burned at complete rest.
Enter your details to estimate your resting metabolic rate.
About the BMR Calculator
Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest just to stay alive — powering your breathing, circulation, brain, and cell repair. It’s the single largest part of your daily energy use, often 60–70% of the total. This calculator uses the Mifflin-St Jeor equation, one of the most accurate formulas for estimating BMR from your age, sex, height, and weight. Multiply your BMR by an activity factor to get your Total Daily Energy Expenditure (TDEE), the figure you actually plan meals around.
Educational estimate only — not medical advice. For personalized guidance, consult a qualified healthcare professional.