The daily calories required to remain at the same
weight are determined by several factors:
Basal Metabolic Rate (BMR) or sometimes referred to as Resting
Metabolic Rate (RMR) is calculated by the Harris-Benedict
formula using sex, weight, height and age.
BMR is essentially the number of calories the body consumes
per day in a state of rest or non-activity
Lean and muscular, average or overweight.
The Harris-Benedict formula works well for average weight
individuals but will underestimate the number of calories
needed for individuals who are lean and muscular and overestimate
the calories needed by people who are significantly overweight
And finally level of activity