Enter Child Information
Growth Results
Age: --
Gender: --
Weight
Height
Head Circumference
Interpretation
Enter your child's measurements to see growth percentiles and interpretation.
Growth Charts
Weight Percentile Chart
Height Percentile Chart
Head Circumference Percentile Chart
Understanding Growth Percentiles
What are Growth Percentiles?
Growth percentiles compare your child's measurements with other children of the same age and gender. The percentile indicates what percentage of children your child's measurement exceeds.
For example, if your child is in the 75th percentile for weight, it means that 75% of children the same age and gender weigh the same or less, and 25% weigh more.
Interpreting Percentiles
Note: A single measurement only provides a snapshot. What's most important is how your child grows over time. Regular measurements help track your child's growth pattern.
This calculator uses World Health Organization (WHO) growth standards for children aged 0-36 months. Results are for informational purposes only and should not replace professional medical advice. Always consult with your pediatrician about your child's growth.
Frequently Asked Questions
How often should I measure my child's growth?
For babies under 6 months, measurements are typically taken at each well-child visit (2 weeks, 2 months, 4 months, 6 months). After 6 months, measurements are usually taken at 9, 12, 15, 18, 24, 30, and 36 months.
My child is in a low percentile. Should I be concerned?
Not necessarily. What's most important is that your child is growing consistently along their own curve. Some children are naturally smaller or larger than others. Discuss any concerns with your pediatrician.
Why does this calculator only go to 36 months?
This calculator uses the WHO Child Growth Standards which are specifically designed for children from birth to 36 months. Different standards apply for older children.
How accurate are home measurements?
Home measurements can be useful for monitoring but may not be as precise as those taken at a medical office. For the most accurate results, use proper measuring techniques and equipment.
What if my child was born prematurely?
For premature babies, it's often recommended to use "corrected age" until 2 years old. Corrected age is calculated by subtracting the number of weeks premature from the child's actual age.