1. What is BMI for Children?

BMI (Body Mass Index) for children is calculated the same way as for adults, but the interpretation is different. Children's BMI is compared to growth charts to determine a percentile ranking based on age and sex.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Then compares the result to CDC/WHO growth charts to determine the percentile for the child's age and gender.

Percentile Categories:

• <5th percentile: Underweight
• 5th-85th percentile: Healthy weight
• 85th-95th percentile: Overweight
• ≥95th percentile: Obese

3. Importance of BMI Percentile

Details: BMI percentile is the most common indicator of weight status in children and adolescents. It helps identify potential weight problems that could lead to health issues.

4. Using the Calculator

Tips: Enter weight in kilograms, height in meters, age in years (2-20), and select gender. For accurate results, measurements should be taken with minimal clothing.

5. Frequently Asked Questions (FAQ)

Q1: Why use percentiles for children instead of fixed BMI values?
A: Children's body composition changes as they grow, so percentiles account for normal growth patterns based on age and sex.

Q2: What if my child is below 2 years old?
A: For infants, weight-for-length percentiles are used instead of BMI. Consult your pediatrician for appropriate measurements.

Q3: How often should I check my child's BMI?
A: Regular check-ups with your pediatrician will include BMI tracking. For home use, every 3-6 months is sufficient unless advised otherwise.

Q4: Are there limitations to BMI for children?
A: BMI doesn't distinguish between muscle and fat, so athletic children might show higher percentiles. Always consider individual circumstances.

Q5: What should I do if my child's percentile is concerning?
A: Consult with a pediatrician or dietitian for personalized advice. Growth patterns should be evaluated over time.