BMR Calculator

Find the calories your body burns at complete rest.

Calculate BMR

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About BMR

What is BMR?

Your Basal Metabolic Rate is the energy your body uses at complete rest to maintain essential functions — breathing, circulation, cell production and temperature regulation.

How it is calculated

This calculator uses the Harris-Benedict equation, which accounts for your weight, height, age and gender.

Using your result

Multiply your BMR by an activity factor to estimate total daily calorie needs. All five activity levels are shown with your result.

BMR estimates vary between equations. Use this as a starting point, not a prescription.