Understanding BMI
BMI (Body Mass Index) is a measurement used to assess whether a person is within a healthy weight range. It is calculated by combining a person's height and weight to derive a numerical value that can help individuals understand their weight status. BMI is calculated using the formula BMI = Weight (kg) / Height (m)^2.
BMI table for adults
This BMI Calculator uses the World Health Organization's (WHO) recommended body weight based on BMI values for adults. It is used for both men and women, age 20 or older.
| Classification | BMI range (kg/m2) |
|---|---|
| Severe Thinness | < 16 |
| Moderate Thinness | 16 - 17 |
| Mild Thinness | 17 - 18.5 |
| Normal | 18.5 - 25 |
| Overweight | 25 - 30 |
| Obese Class I | 30 - 35 |
| Obese Class II | 35 - 40 |
| Obese Class III | > 40 |
BMI table for children and teens
Understanding your child's or teenager's Body Mass Index (BMI) is an important step in monitoring their healthy growth and development. Unlike adults, BMI for children and teens is age and sex-specific. This is because body fat percentage varies significantly as they grow and mature. Therefore, interpreting a child's or teen's BMI involves comparing their BMI to those of other children and teens of the same age and sex.
| Classification | Percentile Range |
|---|---|
| Underweight | < 5% |
| Healthy weight | 5% - 85% |
| Overweight | 85% - 95% |
| Obese | >= 95% |
Risks associated with being overweight
Being overweight or obese carries several health risks. Prolonged overweight status can increase the risk of cardiovascular diseases, high blood pressure, diabetes, skeletal issues, and certain types of cancer. Additionally, being overweight can also have negative impacts on mental health, such as decreased self-esteem, anxiety, and depression.
Risks associated with being underweight
Being underweight also poses certain health risks. Being excessively thin can lead to decreased immunity, anemia, fertility problems, and osteoporosis. Furthermore, prolonged low weight status can result in malnutrition and impaired bodily functions. Therefore, maintaining a healthy weight range is crucial for overall health.
Limitations of BMI
It's important to note that BMI is a rough indicator and doesn't directly measure body fat or muscle mass. For instance, individuals with a high level of muscle mass may have a higher BMI, but it doesn't necessarily mean they are obese.
BMI is a simple and commonly used tool, but when evaluating an individual's weight and health status, other factors such as waist circumference, body fat percentage, and overall health should also be taken into consideration. If you have concerns about your weight or health, it is recommended to consult a medical professional or a specialized health institution for a thorough assessment.
Why Use Our BMI Calculator?
Our BMI Calculator is simple, accurate, and free to use. Whether you are tracking your health or planning a fitness journey, the BMI Calculator provides instant results and helpful guidance.