BMI Calculator

BMI CALCULATOR INTRODUCTION

The Body Mass Index (BMI) Calculator can be used to calculate BMI value and corresponding weight status while taking age into consideration. To convert units into either US or metric units, use the International System of Units' "Metric Units" or "Other Units" tabs. Keep in mind that in addition to BMI, the calculator also calculates the Ponderal Index, which is the subject of in-depth discussion below.

BMI is a measurement of a person's leanness or corpulence based on their height and weight, and is intended to quantify tissue mass. It is frequently used as a general measure of a person's healthy weight for their height. In particular, the value that is derived from the calculation of BMI is used to classify a person as either underweight, normal weight, overweight, or obese based on the range in which the value falls. These ranges of BMI can be broken down further into subcategories, such as severely underweight or very severely obese, depending on factors like age and location. Although BMI is not a perfect measure of healthy body weight, it is a useful indicator of whether additional testing or action is required. Being overweight or underweight can have significant health effects. The calculator uses a variety of BMI-based categories, which you can see in the table below.

BMI Chart for girls age 5-19

BMI Chart for boys age 5-19

Note These charts are taken from World Health Organization (WHO) official website. https://who.int/