Calculate your BMI using this calculator if you are 20 years old or older.
Body Mass Index (BMI) is a number calculated from a person's height and weight. It provides a reliable indicator of fat on the body and is used to screen people into weight categories that may lead to health issues. The BMI calculator is not a diagnostic tool rather a screening tool. It may identify possible weight problems that may lead to certain health risks. Based on one's BMI readings a doctor may want to perform further health assessments including diet, family history and activity level.