💚 VitalCalcs

Basal Metabolic Rate Calculator

Find out how many calories your body burns at rest — and how many you need each day.

Your Basal Metabolic Rate

calories/day at rest

Activity LevelDaily Calories (TDEE)

What Is BMR?

Your basal metabolic rate is the number of calories your body needs to maintain basic functions while completely at rest — breathing, circulation, cell production.

The Mifflin-St Jeor equation is the most accurate formula for estimating BMR. Multiply by an activity factor to get your total daily energy expenditure (TDEE).

This calculator is for general informational purposes only. It is not a substitute for professional medical advice.