This calorie intake calculator uses two important inputs to calculate daily calorie needs namely :

1. The BMR (basal metabolic rate) of the individual

2. The daily amount of activity performed by the individual

The calorie intake calculator multiplies a certain activity factor into the BMR based upon the level of activity. According to the Harris Benedict Equation, the activity factor is multiplied to the BMR according to the following activity levels:

Little or no exercise:

The calorie calculator multiplies BMR x 1.2

Light exercise 1-3 days/week:

The calorie calculator multiplies BMR x 1.375

Moderate exercise 3-5  More Details