Calculate your Body Mass Index (BMI) to find out whether your weight falls within the healthy range for adults based on your height.
Body Mass Index (BMI) is calculated using a person’s weight and height. The calculation uses weight in kilograms and height in meters.
BMI is calculated using the following formula:
For example, if a person weighs 70 kg and is 1.75 meters tall, their BMI is approximately 22.9.
For most adults, a BMI between 18.5 and 24.9 is classified as being within the healthy weight range.
| BMI Range | Classification |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Healthy Weight |
| 25 – 29.9 | Overweight |
| 30 or higher | Obesity |
These categories are intended for adults and should not be applied to children and adolescents in the same way.
BMI is a simple and useful screening tool for assessing weight at both the population and individual level. However, it does not directly measure body fat and may not accurately reflect a person’s overall health or body composition in every case.
For example, athletes and other people with a high amount of muscle mass may have a higher BMI because muscle is denser than body fat. In these situations, BMI may not provide a complete picture of body composition.
BMI should therefore be interpreted together with other health factors, such as waist circumference, body composition, lifestyle, medical history, and other risk factors. It should not be considered a medical diagnosis on its own.
Body Mass Index (BMI) is a value calculated using a person’s weight and height to help classify weight among adults.
For most adults, a BMI between 18.5 and 24.9 is classified as being within the healthy weight range.
BMI is calculated by dividing a person’s weight in kilograms by their height in meters squared.
Adult BMI categories should not be used for children and adolescents in the same way. BMI in children and teenagers is assessed according to age and sex using appropriate growth charts.
BMI does not determine one ideal weight for every person. Instead, it provides a general weight classification range based on height.