Body Mass Index (BMI) Calculator
Your BMI will appear here.
BMI Calculator Chart
| BMI Category | BMI Range (kg/m2) | Description |
| Underweight | Below 18.5 | May indicate malnutrition or other health problems. |
| Healthy/Normal Weight | 18.5 – 24.9 | Generally associated with the lowest health risk. |
| Overweight | 25.0 – 29.9 | Increased risk of developing health issues. |
| Obesity (Class I) | 30.0 – 34.9 | High risk of obesity-related diseases. |
| Obesity (Class II) | 35.0 – 39.9 | Very high risk of obesity-related diseases. |
| Obesity (Class III) | 40.0 or greater | Often referred to as Severe or Morbid Obesity. |
⚠️ Important Considerations
It is crucial to remember that BMI is a screening tool, not a diagnostic tool.
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Muscle Mass: BMI doesn’t differentiate between muscle and fat. Highly muscular individuals (like athletes) may have a BMI in the Overweight or Obese categories despite having very low body fat.
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Age and Sex: On average, older adults and women tend to have more body fat than younger adults and men, respectively, for the same BMI.
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Ethnicity: Some populations, particularly those of Asian descent, may be at an increased health risk at a lower BMI cutoff (sometimes starting at $23.0 text{ kg}/text{m}^2$ for Overweight).
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Other Measures: For a complete health assessment, healthcare providers often consider BMI along with waist circumference (to measure abdominal fat) and other health factors like blood pressure and cholesterol levels.