1. What is BMI for Children?

BMI (Body Mass Index) for children is calculated the same way as for adults, but the results are interpreted differently. For children and teens, BMI is age- and gender-specific and is referred to as BMI-for-age.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

The result is then compared to UK growth charts to determine the percentile for girls of the same age.

3. Importance of BMI Calculation for Children

Details: Tracking BMI-for-age helps identify potential weight problems in children. The NHS uses BMI percentiles to categorize children's weight status.

4. Using the Calculator

Tips: Enter weight in kilograms, height in meters, and age in years (between 2-18). For accurate results, measurements should be taken in the morning before eating.

5. Frequently Asked Questions (FAQ)

Q1: Why is BMI interpreted differently for children?
A: Children's body composition varies as they grow, so BMI must be compared to others of the same age and gender.

Q2: What are the NHS BMI categories for children?
A: Below 2nd percentile (underweight), 2nd-91st (healthy weight), 91st-98th (overweight), above 98th (obese).

Q3: How often should my child's BMI be checked?
A: The NHS recommends annual checks as part of routine health assessments.

Q4: Are there limitations to BMI for children?
A: BMI doesn't distinguish between muscle and fat, so athletic children may appear overweight when they're not.

Q5: What should I do if my child is in an unhealthy range?
A: Consult your GP or a pediatric dietitian for personalized advice and support.