BMI Calculator
What is a BMI Calculator?
The Body Mass Index (BMI) is a simple calculation using a person's height and weight. It provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
BMI = weight (kg) / [height (m)]²
Where:
- weight is in kilograms (kg)
- height is in meters (m)
BMI Classification Table
| Category | BMI Range |
|---|---|
| Underweight | Below 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obese | 30 and above |
Why is BMI Important?
BMI gives an estimate of your body fat and related health risks. Although not perfect (since it doesn’t account for muscle mass, bone density, etc.), it is a helpful screening tool for weight-related health issues.
Limitations of BMI
- Does not differentiate between fat and muscle mass
- May not apply equally to athletes or elderly
- Should be considered along with other health indicators