Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. BMI is used to categorize peoples weight into different groups. According to the CDC, if your BMI is between 25.0 and 29.9, it falls within the overweight range. However, it is important to note that BMI is a screening tool and does not diagnose body fatness or health. A trained healthcare provider should perform appropriate assessments to evaluate an individuals health status and risks.