BMI Calculator – Metric System
Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It’s an inexpensive and easy-to-perform method of screening for weight categories that may lead to health problems. Learn how to calculate BMI in the metric system with our interactive tool.
- Enter your height in centimeters.
- Enter your weight in kilograms.
- Click the ‘Calculate’ button.
BMI is calculated as weight in kilograms divided by height in meters squared (kg/m²). Our calculator uses this formula:
BMI = weight(kg) / (height(cm) / 100)²
| Height (cm) | Weight (kg) | BMI |
|---|---|---|
| 170 | 65 | 22.5 |
| 165 | 70 | 25.1 |
| 175 | 80 | 26.1 |
| BMI Category | Weight Status |
|---|---|
| Below 18.5 | Underweight |
| 18.5-24.9 | Normal weight |
| 25.0-29.9 | Overweight |
| 30.0 and above | Obesity |
- Regularly monitor your BMI to track your weight changes.
- Use our calculator to set realistic weight loss or gain goals.
- Consult a healthcare professional for personalized advice.
What is a healthy BMI range?
A healthy BMI is considered to be between 18.5 and 24.9.
Can BMI be inaccurate?
Yes, BMI may not be accurate for everyone. It may overestimate body fat in muscular individuals and underestimate it in older adults due to loss of muscle mass.
World Health Organization – Obesity and Overweight
Centers for Disease Control and Prevention – Adult Obesity Facts