1. What is Body Mass Index?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It provides a simple numeric measure of a person's thickness or thinness.

2. How Does the Calculator Work?

The calculator uses the BMI formula:

Where:

• \( weight \) — Body weight in kilograms (kg)
• \( height \) — Height in meters (m)

Explanation: BMI is calculated by dividing a person's weight in kilograms by the square of their height in meters.

3. Importance of BMI Calculation

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

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. Ensure values are accurate for reliable results. Weight must be greater than 0, height must be greater than 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), Obese (≥30).

Q2: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes (high muscle mass), elderly (loss of muscle mass), pregnant women, and children.

Q3: 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 reflect health status accurately in all individuals.

Q4: Can BMI be used for children?
A: For children and teens, BMI is age and sex-specific and is referred to as BMI-for-age.

Q5: What is a healthy BMI range?
A: For most adults, a BMI between 18.5 and 24.9 is considered healthy.