BMR Calculator

Calculate your basal metabolic rate (BMR) and total daily energy expenditure (TDEE) using the Mifflin-St Jeor formula.

About the BMR Calculator

Calculate your basal metabolic rate (BMR) and total daily energy expenditure (TDEE) using the Mifflin-St Jeor formula.

Our free bmr calculator is designed to give you fast, accurate results. All calculations are performed locally in your browser — no data is sent to any server.