1. What is BMI?

BMI (Body Mass Index) is a simple index of weight-for-height that is commonly used to classify underweight, normal weight, overweight and obesity in adults. It's calculated by dividing weight in kilograms by height in meters squared.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

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

3. Importance of BMI Calculation

Details: BMI is an important screening tool for potential weight problems in adults. In Australia, it's used to identify weight categories that may lead to health problems.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For accuracy, measure height without shoes and weight with minimal clothing.

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories for Australian women?
A: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese (≥30).

Q2: Is BMI different for women and men?
A: The same BMI values apply to both genders, but women tend to have more body fat than men at the same BMI.

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

Q4: Is BMI accurate for athletes?
A: BMI may overestimate body fat in athletes and others with muscular builds, and underestimate it in older people who have lost muscle mass.

Q5: What's a healthy BMI range for Australian women?
A: For most Australian women, a BMI between 18.5 and 24.9 is considered healthy, though individual circumstances may vary.