1. What is Children's BMI?

BMI (Body Mass Index) for children is calculated the same way as for adults, but the results are interpreted differently. Children's BMI is age and sex-specific and is expressed as a percentile comparing to other children of the same age and gender.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• \( weight \) — Child's weight in kilograms
• \( height \) — Child's height in meters

Explanation: The result is then compared to standard growth charts to determine the child's percentile for their age and gender.

3. Importance of BMI Calculation

Details: Tracking BMI in children helps identify potential weight problems that could lead to health issues. It's a screening tool that helps determine if further assessment is needed.

4. Using the Calculator

Tips: Measure height without shoes and weight with minimal clothing. Use accurate measurements for best results. The calculator is for children aged 2-18 years.

5. Frequently Asked Questions (FAQ)

Q1: What do the percentiles mean?
A: Below 2nd percentile: underweight; 2nd to 91st: healthy weight; 91st to 98th: overweight; Above 98th: very overweight (obese).

Q2: How often should my child's BMI be checked?
A: NHS recommends annual checks as part of routine health assessments.

Q3: Is BMI accurate for all children?
A: BMI is a screening tool. Very muscular children or those with certain medical conditions may need alternative assessments.

Q4: What if my child's BMI is high?
A: Consult your GP or health visitor for personalized advice. They may consider other factors like growth pattern and family history.

Q5: Where can I find official NHS growth charts?
A: NHS growth charts are available at your GP surgery or on the NHS website.