1. What is BMI?

BMI (Body Mass Index) is a measure of body fat based on weight and height 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: The formula divides a person's weight by the square of their height to categorize their weight status.

3. Importance of BMI Calculation

Details: BMI is a quick screening tool for weight categories that may lead to health problems. It helps identify potential weight issues in adults.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. 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 muscular individuals?
A: BMI may overestimate body fat in athletes with high muscle mass since muscle weighs more than fat.

Q3: How often should I check my BMI?
A: Periodic checks (every 6-12 months) are sufficient for most adults unless significant weight changes occur.

Q4: Are there limitations to BMI?
A: BMI doesn't account for muscle mass, bone density, overall body composition, or racial/sex differences.

Q5: Should BMI be used alone for health assessment?
A: No, it should be used alongside other measurements like waist circumference and body composition analysis.