Body mass index, or BMI, is a measure of body size. It combines a person’s weight with their height. The results of a BMI measurement can give an idea about whether a person has the correct weight for their height.
BMI is a screening tool that can indicate whether a person is underweight or if they have a healthy weight, excess weight, or obesity. If a person’s BMI is outside of the healthy range, their health risks may increase significantly.
This BMI calculator is for informational purposes only. Consult a healthcare provider before making health decisions. BMI is an indirect assessment of health risk and may not be accurate because it cannot determine the proportion or distribution of body fat. BMI calculator source: National Institutes of Health (NIH).