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. For New Zealand women, BMI provides a useful population-level measure of weight status.

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 divides a person's weight by the square of their height to provide a standardized measure of body fatness.

3. Importance of BMI for NZ Women

Details: BMI is particularly important for New Zealand women as obesity rates are higher among Māori and Pacific women compared to other ethnic groups. Monitoring BMI can help identify health risks associated with weight.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For best results, measure weight in the morning before eating and wear minimal clothing. Measure height without shoes.

5. Frequently Asked Questions (FAQ)

Q1: Are BMI categories different for NZ women?
A: No, the standard categories apply, but health risks may vary by ethnicity. Māori and Pacific women may have higher health risks at lower BMI levels.

Q2: What is a healthy BMI range for NZ women?
A: The healthy range is 18.5-24.9 kg/m², though individual health assessments should consider other factors.

Q3: Does BMI work for pregnant women?
A: No, BMI calculations are not valid during pregnancy as weight gain is expected and necessary.

Q4: Are there limitations to BMI?
A: Yes, BMI doesn't distinguish between muscle and fat, so very muscular women may have high BMI without excess fat.

Q5: Should BMI be the only measure of health?
A: No, waist circumference and other health markers should also be considered for a complete health assessment.