Child Growth Calculator (WHO Based) – Check Height, Weight & BMI Percentile
Monitoring your child’s growth is one of the most important responsibilities for parents.
A Child Growth Calculator (WHO Based) helps you understand whether your child is developing normally by analyzing their height, weight, age, and gender.
This tool provides insights into your child’s Body Mass Index (BMI) and compares it with global standards set by the World Health Organization (WHO).
Child growth is not only about physical appearance—it reflects nutrition, immunity, and overall health.
By regularly checking growth parameters, parents can detect potential issues early and take corrective action.
WHO Growth Chart BMI for Age (Boys & Girls)
The WHO growth charts are internationally accepted standards used by doctors and pediatricians.
WHO Growth Chart for Boys (5–9 Years)
| Age |
Height (cm) |
Weight (kg) |
BMI (Approx) |
| 5 years | 110.0 | 18.3 | 15.1 |
| 6 years | 116.0 | 20.5 | 15.2 |
| 7 years | 122.0 | 22.9 | 15.4 |
| 8 years | 128.0 | 25.6 | 15.6 |
| 9 years | 133.0 | 28.5 | 16.1 |
Source: WHO Growth Standards (Approx Median Values)
WHO Growth Chart for Girls (5–9 Years)
| Age |
Height (cm) |
Weight (kg) |
BMI (Approx) |
| 5 years | 109.0 | 18.2 | 15.3 |
| 6 years | 115.0 | 20.2 | 15.3 |
| 7 years | 121.0 | 22.4 | 15.3 |
| 8 years | 127.0 | 25.0 | 15.5 |
| 9 years | 133.0 | 28.1 | 15.9 |
Source: WHO Growth Standards (Approx Median Values)
Understanding WHO Percentiles
- Below 5th percentile → Underweight
- 5th to 85th percentile → Healthy weight
- 85th to 95th percentile → Overweight
- Above 95th percentile → Obese
How the Child Growth Calculator Works
The calculator uses:
- Age (years)
- Gender (boy/girl)
- Height (cm)
- Weight (kg)
BMI Formula: Weight (kg) ÷ Height (m²)
👉 You can also check your BMI here:
BMI Calculator – Check Your Health Status
Why Monitoring Child Growth Is Important
- Detects malnutrition early
- Prevents childhood obesity
- Tracks development
- Identifies health issues
👉 You can also check more details about Child Growth here:
Child Growth: A Simple Guide for Parents
Factors Affecting Child Growth
- Nutrition: Balanced diet is essential
- Genetics: Family traits matter
- Physical Activity: Improves growth
- Sleep: Growth hormones work during sleep
Tips for Healthy Growth
- Eat balanced diet
- Daily exercise
- Proper sleep
- Avoid junk food
- Regular doctor checkups
When to See a Doctor
- Very low weight or height
- Sudden weight changes
- Delayed growth
FAQs
Is BMI accurate for children?
Yes, but it must be compared with age-based percentiles.
How often to check growth?
Every 3–6 months.
Can this replace a doctor?
No, it is only a basic screening tool.
Conclusion
The Child Growth Calculator (WHO Based) is a powerful tool to monitor your child’s development.
Use it regularly and consult a doctor if needed to ensure a healthy future.
Advanced Child Growth Calculator
