What Does The Calorie Calculator Do?
The calorie calculator measures your BMR or Base Metabolic Rate, or more simply how many calories your body burns at rest, but as an added bonus this calculator will also take into account your current goals and activity levels.
To calculate your BMR it takes into account 4 different factors, your gender, your age, your height, and your current weight.
Though it is not 100% accurate it can act as a good guide line to how many calories you burn per day.