Calculate Body Mass Index (BMI)
Body Mass Index (BMI) is a measurement used to assess whether an adult aged 20 years and above is underweight, within a healthy weight range, overweight, or obese. It is calculated using body weight in kilograms and height in centimeters through the BMI calculator below.
Note.BMI is a statistical screening tool for body weight assessment. The calculated result may not always reflect actual body composition, especially for people who exercise regularly, athletes, or bodybuilders with high muscle mass.
Calculate Body Mass Index (BMI)
Enter your weight and height for a basic BMI assessment.
Please enter a valid weight and height.
| BMI Range | Meaning | Risk |
|---|---|---|
| < 18.5 | Underweight | Higher than normal |
| 18.5 – 22.9 | Normal (Healthy) | Normal |
| 23.0 – 24.9 | Overweight / Obesity Level 1 | Risk Level 1 |
| 25.0 – 29.9 | Obese / Obesity Level 2 | Risk Level 2 |
| ≥ 30 | Severely Obese / Obesity Level 3 | Risk Level 3 |
Frequently Asked Questions (FAQ)
Basic information about Body Mass Index (BMI)
What is BMI?
BMI, or Body Mass Index, is a value calculated from weight and height to provide a basic screening of body weight status in adults, such as underweight, normal weight, overweight, or obesity.
Can BMI be used to diagnose a disease?
No. BMI is only a basic screening tool. It is not a medical diagnosis and does not directly measure body fat. If you have health concerns, you should consult a doctor or qualified healthcare professional.
What BMI range is considered normal?
For adults, a BMI between 18.5 and 22.9 is generally considered within the healthy weight range in this assessment. Higher values may indicate overweight or obesity, while lower values may indicate underweight.
Is BMI suitable for everyone?
Not always. BMI may not be appropriate for everyone, especially children and teenagers, pregnant women, athletes, or people with high muscle mass, because the result may not reflect actual body composition.
What should I do if my BMI is high?
- Start improving eating habits by reducing sugary, fatty, and high-calorie foods
- Increase physical activity or exercise regularly
- Monitor your weight and overall health consistently
- If you have any underlying medical conditions, consult a doctor before starting a weight-loss plan
What else should I look at besides BMI?
You should also consider other factors such as waist circumference, blood pressure, blood sugar, blood lipids, and a professional health check, because overall health should not be judged by BMI alone.