BMI Calculator
🧠 What is BMI (Body Mass Index)?
Body Mass Index (BMI) is a numerical value derived from a person’s weight and height. It’s a quick and widely used screening tool that helps determine whether an individual has a healthy body weight for their height. While it doesn’t measure body fat directly, it gives a general idea of potential health risks associated with being underweight or overweight.
✅ Why BMI Matters
Maintaining a healthy BMI is linked to:
Lower risk of heart disease, diabetes, and high blood pressure
Improved energy and physical performance
Better self-confidence and well-being
BMI is not a perfect measure — especially for athletes or very muscular individuals — but it’s a helpful first step for assessing weight-related health.
📊 BMI Categories and Health Meaning
Here is a more detailed chart that shows the BMI ranges and their corresponding weight categories:
| BMI Range | Category | Health Implications |
|---|---|---|
| Below 18.5 | Underweight | Possible nutritional deficiency and osteoporosis |
| 18.5 – 24.9 | Normal weight | Low risk (healthy range) |
| 25.0 – 29.9 | Overweight | Increased risk of cardiovascular disease |
| 30.0 – 34.9 | Obesity Class I | Moderate risk of serious health problems |
| 35.0 – 39.9 | Obesity Class II | High risk |
| 40.0 and above | Obesity Class III | Very high risk, consult a healthcare provider |
⚙️ How to Use the BMI Calculator
Enter your height (in centimeters)
Enter your weight (in kilograms)
Click Calculate
Instantly see your BMI number and weight category