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 the weight in kilograms divided by the square of the 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)
• \( BMI \) — Body Mass Index in kg/m²

Explanation: The formula calculates body fat based on height and weight, providing a quick screening tool for weight categories.

3. Importance of BMI Calculation

Details: BMI is widely used as a screening tool to identify potential weight problems in adults. It helps healthcare professionals assess health risks associated with being underweight, overweight, or obese.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. Ensure accurate measurements for reliable results. All values must be positive numbers.

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, elderly, or those with high muscle mass as it doesn't distinguish between muscle and fat.

Q3: Can children use this calculator?
A: No, this calculator is for adults only. Children and teens require age and sex-specific BMI percentiles.

Q4: What are the limitations of BMI?
A: BMI doesn't account for muscle mass, bone density, overall body composition, or racial and sex differences.

Q5: Should BMI be the only measure of health?
A: No, BMI should be used alongside other measurements like waist circumference, body fat percentage, and overall health assessment.