BMI (acronym for Body Mass Index) is a numerical computation of one's body weight according to their height and weight.
Basically, BMI calculators cannot measure the percentage of body fat for a given person, but they can estimate a healthy body weight depending on the specified height.
These applications will also offer tips and instructions as to the steps that have to be taken towards a healthy body.
Besides being standalone apps, BMI calculators may be integrated within complex fitness-related tools, encouraging users to keep a balanced nutrition and work out.