1. What is BMI for Children?

BMI (Body Mass Index) is a measure that uses height and weight to estimate body fat. For children, BMI is age and sex-specific and is compared to percentiles rather than fixed categories used for adults.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

Note: For NZ visa purposes, this result would be compared against age and sex-specific percentile charts.

3. Importance for NZ Visa Applications

Details: The NZ Ministry of Health requires BMI assessment for visa applicants under 15 years to identify potential health risks associated with underweight or overweight status.

4. Using the Calculator

Tips:

• Measure height without shoes
• Use recent weight measurement
• Enter height in meters (e.g., 1.25m for 125cm)
• Results should be interpreted by a health professional

5. Frequently Asked Questions (FAQ)

Q1: What BMI percentile is acceptable for NZ visa?
A: There's no single cutoff, but extreme percentiles (<3rd or >97th) may require further medical assessment.

Q2: How is BMI interpreted for children?
A: Unlike adults, children's BMI is compared to growth charts specific to age and sex.

Q3: Where can I find the NZ growth charts?
A: The NZ Ministry of Health provides growth charts on their website for clinical reference.

Q4: Does this replace a medical examination?
A: No, this is just one component of the health assessment required for visa applications.

Q5: What if my child is very muscular?
A: BMI may overestimate body fat in muscular individuals. A health professional can provide alternative assessments if needed.