BMR Calculator

Calculate your Basal Metabolic Rate to understand how many calories your body burns at rest for essential bodily functions.

How It Works

Your Basal Metabolic Rate (BMR) represents the minimum number of calories your body needs to function at rest. This includes calories for breathing, circulation, cell production, and other vital functions. BMR typically accounts for 60-75% of your total daily energy expenditure.

Units:

Personal Information

cm
kg

Calculation Method

Understanding Your BMR

Basal Metabolic Rate (BMR) is the number of calories your body burns while at complete rest to maintain vital functions like breathing, circulation, and cellular processes.

Key Factors Affecting BMR:

  • Age: BMR decreases by about 2% per decade after age 30
  • Gender: Men typically have higher BMR due to more muscle mass
  • Body size: Larger bodies require more energy for basic functions
  • Muscle mass: Muscle tissue burns more calories than fat tissue
  • Genetics: Some people naturally have faster or slower metabolisms

BMR vs TDEE:

  • BMR: Calories burned at complete rest
  • TDEE: BMR + calories from daily activities and exercise
  • BMR typically accounts for 60-75% of total daily calories burned

Note: BMR calculations are estimates based on population averages. Individual metabolic rates can vary by 15-20% due to genetic and lifestyle factors.