BMR Calculator

Estimate how many calories your body burns per day at complete rest using a scientifically accepted formula.

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Your BMR: kcal/day

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About BMR

Basal Metabolic Rate (BMR) represents the minimum number of calories your body needs to maintain vital functions such as breathing, circulation, and temperature regulation.

How This Calculator Works

This tool uses the Mifflin–St Jeor equation, one of the most accurate formulas for estimating BMR in healthy adults. Your age, gender, height, and weight are used to calculate the result.

Why BMR Is Important

Knowing your BMR helps you estimate daily calorie needs, plan weight goals, and better understand how your body uses energy.

Health Advice

BMR is only a starting point. Actual calorie needs depend on activity level, lifestyle, and health conditions. Always combine calculator results with professional guidance.

FAQs

Is this exact? No calculator is 100% exact, but this provides a reliable estimate.
Does age matter? Yes, BMR generally decreases as you get older.
Should I eat exactly my BMR? No — daily needs are usually higher than BMR.