FitDose
Body Mass Index (BMI) Calculator
Calculate your Body Mass Index (BMI) to assess your weight status. All calculations are performed locally and your data is never stored or transmitted.
Your data is not stored or sent to the server. All calculations are performed locally in your browser.
Enter your information and click Calculate to see your BMI results
This is 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 |
The Centers for Disease Control and Prevention (CDC) recommends BMI categorization for children and teens between age 2 and 20.
| Category | Percentile Range |
|---|---|
Underweight | < 5% |
Healthy Weight | 5% - 85% |
At Risk of Overweight | 85% - 95% |
Overweight | > 95% |
Important Note:
For children and teens, BMI is age and sex-specific and is often referred to as BMI-for-age. The percentile indicates how a child's BMI compares to other children of the same age and sex. Consult with a healthcare provider for proper interpretation of BMI results for children and adolescents.