01
What is BMI?
Body Mass Index (BMI) is a numerical value of your weight in relation to your height. It's an internationally used measure to help assess if people have a healthy body weight.
02
BMI Categories
• Severe Underweight: < 16.5 • Underweight: 16.5–18.4 • Normal Weight: 18.5–24.9 • Overweight: 25–29.9 • Obese Class I: 30-34.9 • Obese Class II: 35-39.9 • Obese Class III: ≥ 40
03
Health Implications
Being outside the healthy range can increase your risk of health issues. Underweight: nutrient deficiencies, osteoporosis. Overweight: heart disease, diabetes, high blood pressure.
04
BMI Limitations
BMI doesn't distinguish between weight from muscle and fat. It may not be suitable for athletes, elderly, pregnant women, or certain ethnic groups who may have different body compositions.
05
Using BMI Results
Use BMI as a screening tool, not a diagnostic test. Consult healthcare providers for proper evaluation of your body composition and health status.
06
How BMI is Calculated
BMI = Weight (kg) / Height² (m²) Example: Weight: 70kg Height: 1.75m BMI = 70 / (1.75 × 1.75) = 22.9
Method and sources
Method: Weight divided by height squared.
Supported population: Adults age 20 and older; children require age- and sex-specific percentiles.
- Weight and height are measured consistently
- Adult BMI category thresholds are appropriate for the user
Frequently asked questions
How is the BMI estimate calculated?
Weight divided by height squared.
What are the limitations of this BMI estimate?
BMI is a screening measure and does not distinguish muscle, fat, pregnancy, age-related change, or individual health status.