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Child Growth Tracker

Enter your child age, weight and sex to compare against WHO reference medians and get an approximate weight percentile and status.

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Child Growth Tracker
Check if your child's height and weight are within healthy range for their age
♂ Boy
♀ Girl
Enter age and measurements to check growth

Medical disclaimer. This calculator is provided for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional regarding your health, diet, exercise, or medication decisions. Read full disclaimer →

About Child Growth Percentile Calculator

Child growth percentiles compare a child height, weight, and BMI against WHO or CDC reference populations of the same age and sex. Percentile indicates percentage of children at or below that measurement - 50th percentile is average, 85th means taller or heavier than 85% of peers. Our calculator uses WHO Child Growth Standards (birth to 5 years) and WHO Reference (5-19 years).

A single measurement matters less than the growth trajectory over time. Consistently tracking along any percentile curve (5th to 95th) is generally normal. Concern arises when a child crosses two major percentile lines in either direction, which may indicate nutritional, hormonal, or medical issues. BMI-for-age: below 5th percentile is ⚡ Underweight; 85th-95th is ⚠ Overweight; above 95th is obese. Always interpret growth data with a paediatrician who has the full clinical context.

Frequently Asked Questions

A percentile shows what percentage of children of the same age and sex have a measurement at or below your child value. For example, the 50th percentile is the average, while the 85th percentile means a child is heavier or taller than 85% of their peers of the same age and sex.
This calculator uses simplified WHO Child Growth Standards median weight-for-age data for children from birth to 60 months (5 years), separated by sex, to estimate an approximate weight percentile for your child.
No - a single measurement matters far less than the growth trajectory over time. A child who consistently tracks along any percentile curve, from the 5th to the 95th, is generally considered to be growing normally. What typically raises concern is a child crossing two major percentile lines in either direction, which can indicate a nutritional, hormonal, or medical issue worth investigating.
As a simplified reference, this tool flags weight below about 85% of the WHO median as potentially underweight and weight above about 115% of the median as potentially overweight. This is only an approximate screening estimate, not a clinical assessment - always interpret a child's growth data together with a paediatrician who has the full clinical picture, including growth history and other health factors.
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