1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. It provides a reliable indicator of body fatness for most people.

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 weight in kilograms by the square of height in meters.

3. Importance of BMI Calculation

Details: 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.

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 is a healthy BMI range?
A: For adults, 18.5 to 24.9 is considered healthy. For seniors over 70, 25-27 may be more optimal.

Q2: Does BMI differ for men and women?
A: The calculation is the same, but healthy ranges may vary slightly due to body composition differences.

Q3: What are BMI limitations?
A: BMI doesn't account for muscle mass, bone density, overall body composition, or racial/ethnic differences.

Q4: Is BMI accurate for seniors?
A: BMI may overestimate body fat in older people who have lost muscle mass. Waist circumference may be a better indicator.

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