1. What is BMI?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, normal weight, overweight and obesity in adults. The Heart Foundation recommends BMI as a screening tool for weight categories.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

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 is an important screening tool for potential weight problems in adults. For women, maintaining a healthy BMI is particularly important for heart health and overall wellbeing.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For accuracy, measure weight without heavy clothing and height without shoes. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: Why focus on women's BMI specifically?
A: Women have different body composition and fat distribution than men. The Heart Foundation provides specific guidelines for women's heart health.

Q2: What are healthy BMI ranges for women?
A: For adult women: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obese (≥30).

Q3: Are there limitations to BMI?
A: BMI doesn't distinguish between muscle and fat, so very muscular women may have high BMI without excess fat. It also doesn't account for fat distribution.

Q4: Should pregnant women use this calculator?
A: No, BMI calculations during pregnancy are not accurate. Consult your healthcare provider for weight guidance during pregnancy.

Q5: How often should I check my BMI?
A: For most women, checking every 3-6 months is sufficient unless you're actively trying to lose or gain weight.