Caloric Needs Calculator Caloric Needs Calculator (Harris-Benedict) Age (years): Gender: Male Female Height (cm): Weight (kg): Activity Level: Sedentary (little or no exercise) Lightly Active (exercise 1-3 days/week) Moderately Active (exercise 3-5 days/week) Active (exercise 6-7 days/week) Very Active (very intense exercise daily, or physical job) All Health & Fitness Calculators