Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic life functions at rest, including breathing, circulation, cell production, nutrient processing, protein synthesis, and ion transport.
Activity Level Guide:
Sedentary: Office job, little or no exercise
Lightly Active: Light exercise 1-3 days/week
Moderately Active: Moderate exercise 3-5 days/week
Very Active: Hard exercise 6-7 days/week
Extra Active: Very hard exercise, physical job