Standard BMI Calculator
| require | require |
Your BMI is......
| BMI | Classification |
|---|---|
| less than 18.5: | Underweight |
| 18.5 - 24.9: | Normal weight |
| 25 - 29.9: | Overweight |
| 30 - 34.9: | Class I Obese |
| 35 - 39.9: | Class II Obese |
| 40 upwards: | Class III Obese |
Related
BMI introduction | What BMI Is?
BMI – Body Mass Index, BMI
BMI is a measurement of a person’s leanness or corpulence based on their height and weight and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy body weight for their height. Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on what range the value falls between. These ranges of BMI vary based on factors such as region and age and are sometimes further divided into subcategories such as severely underweight or very severely obese. Being overweight or underweight can have significant health effects, so while BMI is an imperfect measure of healthy body weight, it is a useful indicator of whether any additional testing or action is required. Refer to the table below to see the different categories based on BMI that are used by the calculator.
BMI table for adults | WHO BMI Calculator
Below is the (WHO) World Health Organization’s recommended body weight based on BMI values for adults. It is used for both men and women, aged 18 or older.
| Category | 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 |
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