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BMR

BMR Calculator

Estimate your Basal Metabolic Rate — the calories your body burns at complete rest. Supports Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.

Mifflin-St JeorHarris-BenedictKatch-McArdleTDEE Table
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BMR Calculator

Enter your details to calculate your Basal Metabolic Rate.

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What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest. Multiply BMR by an activity factor to get your Total Daily Energy Expenditure (TDEE).

Formula Comparison

Mifflin-St Jeor — Most accurate for general population (1990)

Harris-Benedict — Widely used, revised in 1984

Katch-McArdle — Best for lean individuals who know their body fat %

Frequently Asked Questions

Frequently Asked Questions

BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest to maintain vital functions — breathing, circulation, cell production, and temperature regulation. It accounts for 60–75% of total daily calorie expenditure for most people.