1. What is Body Mass Index (BMI)?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is widely used as a screening tool to identify weight categories that may lead to health problems.

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 provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems more objectively with their patients.

3. Importance of BMI Calculation

Details: BMI calculation is important for assessing weight-related health risks. It helps identify underweight, normal weight, overweight, and obesity categories which are associated with various health conditions.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For accurate results, measure weight and height precisely.

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

Q3: How often should I check my BMI?
A: For most adults, checking BMI every 6-12 months is sufficient unless you're actively trying to change your weight.

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

Q5: Should BMI be used alone for health assessment?
A: No, BMI should be used as a screening tool along with other assessments like waist circumference, diet evaluation, and physical activity levels.