BMR is short for Basal Metabolic Rate Your Basal Metabolic Rate is the number of calories required to keep your body functioning at rest, also known as your metabolism.

Harris-Benedict Formula

Once you’ve calculated your BMR, this is then put into the Harris-Benedict Formula, which calculates your total calorie intake required to maintain your current weight. This is as follows:

  • Little/no exercise: BMR * 1.2 = Total Calorie Need
  • Light exercise: BMR * 1.375 = Total Calorie Need
  • Moderate exercise (3-5 days/wk): BMR * 1.55 = Total Calorie Need
  • Very active (6-7 days/wk): BMR * 1.725 = Total Calorie Need
  • Extra active (very active & physical job): BMR * 1.9 = Total Calorie Need