1. What Is Body Mass Index?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults. It is defined as a person's weight in kilograms divided by the square of their height in meters.

2. How Does The Calculator Work?

The calculator uses the BMI formula:

Where:

• \( weight \) — Body weight in kilograms (kg)
• \( height \) — Height in meters (m)
• \( BMI \) — Result in kilograms per square meter (kg/m²)

Explanation: The formula calculates body mass relative to height squared, providing a standardized measure for assessing weight status.

3. Importance Of BMI Calculation

Details: BMI is widely used as a screening tool to identify potential weight problems in adults. It helps assess health risks associated with underweight, normal weight, overweight, and obesity.

4. Using The Calculator

Tips: Enter weight in kilograms and height in meters. For accurate results, measure weight without heavy clothing and height without shoes. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What Are The BMI Categories?
A: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obesity (≥30).

Q2: Is BMI Accurate For Everyone?
A: BMI may not accurately reflect body fat in athletes (high muscle mass), elderly (loss of muscle mass), or certain ethnic groups.

Q3: How Often Should BMI Be Calculated?
A: For general health monitoring, calculating BMI annually is sufficient unless significant weight changes occur.

Q4: Can Children Use This Calculator?
A: No, this calculator is for adults only. Children and teens require age and sex-specific BMI percentiles.

Q5: What Are The Limitations Of BMI?
A: BMI doesn't distinguish between muscle and fat mass, doesn't account for fat distribution, and may not be suitable for all populations.