BMI (Body Mass Index)

A BMI may also be called a Quetelet index because the mathematician who developed this measurement scale was named Adolphe Quetelet. BMI is a mathematic calculation that provides a measure for assessing the health risks associated with body weight.The body mass index (BMI) provides a representation of body fat; the greater amount of body fat a person has, the higher the health risks.

Formula To Calculate BMI (Imperial) :

BMI = Mass (lbs)Height (inches)^{2 × 703}

Formula To Calculate BMI (Metric) :

BMI = Mass in kg Height in m²

BMI Prime

It is the ratio of actual BMI to upper body weight limit BMI (currently defined at BMI 25). As defined, BMI Prime is also the ratio of body weight to upper body weight limit, calculated at BMI 25. Individuals with BMI Prime<0.74 are underweight; those between 0.74 and 0.99 have optimal weight; and those at 1.00 or greater are overweight.

Formula To Calculate BMI Prime (Imperial) :

BMI Prime = (Mass (lbs) ÷ Height (inches)² × 703) Upper Body Weight Limit

Formula To Calculate BMI Prime (Metric) :

BMI Prime = (Mass in kg ÷ Height in m²) Upper Body Weight Limit

Formula To Convert between BMI and BMI Prime :

BMI to BMI Prime = BMI Prime = BMI Upper Body Weight Limit

BMI Prime to BMI = BMI = BMI Prime × Upper Body Weight Limit