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Body Mass Index (BMI) Calculator

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Body Mass Index (BMI)

BMI is a useful measure of overweight and obesity. It is calculated from your height and weight. BMI is an estimate of body fat and a good gauge of your risk for diseases that can occur with more body fat. The higher your BMI, the higher your risk for certain diseases such as heart disease, high blood pressure, type 2 diabetes, gallstones, breathing problems, and certain cancers. Although BMI can be used for most men and women, it does have some limits:

BMI Values
Severe thinness - Less than 15.99
Moderate thinness - 16.00 - 16.99
Mild thinness - 17.00-18.49
Normal weight - 18.50-24.99
Overweight - 25.00-29.99
Obese - class I - 30.00-34.99
Obese - class II - 35.00-39.99
Obese - class III - Greater than 40

Information from: National Heart Lung and Blood Institute

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Written by: Drew D. Lenhart
Version: 1.8