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Health

BMR Calculator

Calculate your Basal Metabolic Rate — the calories your body burns at rest — using the Mifflin-St Jeor formula.

Your details

Your BMR will appear here.

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What is BMR?

Basal Metabolic Rate is the number of calories your body needs to maintain basic functions — breathing, circulation, cell production — while completely at rest.

Formula used

This calculator uses the Mifflin-St Jeor equation, widely regarded as one of the most accurate BMR formulas for the general population.

Frequently asked questions

Is BMR the same as calories I should eat?

No — BMR is calories burned at complete rest. Your actual daily needs (TDEE) are higher once you factor in activity, which the Calorie Calculator accounts for.