Body Mass Index (BMI) is a number that compares your height and weight. BMI estimates body fatness for men and women and can be used to assess risk factors for obesity-related diseases. There are limitations to BMI for some people.
To use this calculator:
You can either use the sliders or type your height (size) and weight into the large boxes below. Click anywhere outisde of the input fields to calculate the new BMI number. See below to understand your results.
|Weight Status||What this Means|
A BMI below 18.5 indicates your weight is in the underweight category for adults of your height. Talk with your healthcare provider to determine possible causes of underweight and if you need to gain weight.
|18.6 - 24.9||Normal||
A BMI score between 18.5 - 24.9 indicates your weight is in the normal / healthy weightcategory for adults of your height. Maintaining a healthy weight may reduce the risk of chronic diseases associated with overweight and obesity.
|25 - 29.9||Overweight||
A BMI score between 25.0 - 29.9 indicates your weight is in the overweight category for adults of your height. People who are overweight or obese are at higher risk for chronic conditions such as high blood pressure, diabetes, and high cholesterol.
|30 and Above||Obese||
A BMI score of 30.0 and above indicates your weight is in the obese category for adults of your height. People who are overweight or obese are at higher risk for chronic conditions such as high blood pressure, diabetes, and high cholesterol
If you are overweight:
Anyone who is overweight should try to avoid gaining additional weight. Additionally, if you are overweight with other risk factors (such as high LDL cholesterol, low HDL cholesterol, or high blood pressure), you should try to lose weight. Even a small weight loss (just 10% of your current weight) may help lower the risk of disease. Talk with your healthcare provider to determine appropriate ways to lose weight.
This BMI calculator is only valid for adults. BMI for children is age based and can be calculated using this BMI-for-age calculator. BMI may overestimate body fat in athletes and others who have a muscular build. BMI may underestimate body fat in older persons and others who have lost muscle mass. In addition to BMI, Waist Circumference and other health factors should be considered to estimate your risk of obesity-related diseases.
For more information on BMI, see the Centers for Disease Control and Prevention website on Healthy Weight.