1. What is BMI?

BMI (Body Mass Index) 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 standard 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 healthcare professionals assess health risks associated with being underweight, overweight, or obese.

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. Ensure accurate measurements for precise results. 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), 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 is a healthy BMI range?
A: For most adults, a BMI between 18.5 and 24.9 is considered healthy.

Q4: Can BMI be used for children?
A: BMI calculations for children and teens are interpreted differently using age and sex-specific percentile charts.

Q5: What are the limitations of BMI?
A: BMI doesn't distinguish between muscle and fat, doesn't account for fat distribution, and may not be suitable for all ethnic groups.