BMR (Basal Metabolic Rate) Calculator
Calculate the calories your body burns at rest using the scientifically validated Mifflin-St Jeor and Harris-Benedict formulas.
BMR (Basal Metabolic Rate) Calculator
Calculate the calories your body burns at rest using the scientifically validated Mifflin-St Jeor and Harris-Benedict formulas.
Daily Maintenance by Activity Level
How to Use BMR (Basal Metabolic Rate) Calculator
1. Enter Age, Gender & Body Metrics
Input your biological sex, age, height, and weight in your preferred unit system (metric or imperial).
2. Compute Resting Basal Metabolic Rate
The clinically validated Mifflin-St Jeor equation calculates the exact baseline calories your body burns at complete rest.
3. Plan Nutrition & Daily Deficits
Use your baseline BMR score to structure safe caloric deficits for fat loss or caloric surpluses for lean muscle gain.
How This Utility Works
Scientifically validated Basal Metabolic Rate (BMR) calculator. Computes minimum daily energy expenditure at complete rest using the Mifflin-St Jeor and revised Harris-Benedict equations across metric and imperial body measurements.
Your body metrics, age, weight, and fitness statistics remain exclusively on your device. No health data is stored in remote databases.
Frequently Asked Questions
What is Basal Metabolic Rate (BMR)?
BMR is the baseline number of calories your body requires just to stay alive and fuel essential cellular and organ functions while resting.