What is it?
Child Height and Weight Percentile shows how a child’s height and weight compare with healthy children of the same age and sex. It uses the WHO growth charts (birth to 19 years) and gives the percentile and z-score.
Who is it for?
Parents tracking growth, paediatric nurses and doctors, school health workers, and anganwadi workers.
How to use it
- Choose the Child (Boy or Girl) and Units.
- Enter Age: years and and months, the Height / length and Weight.
- Read the percentiles and z-scores.
Reading percentiles
The 50th percentile is average: half of children are taller, half shorter. Anywhere between about the 3rd and 97th percentile is usually normal; the trend over time matters more than one reading. A sudden drop across percentiles, or values outside that range, are worth discussing with a doctor.
This is information, not a diagnosis.
Errors and how to fix them
- “Enter an age from 0 to 19 years”
- Check the height: it should be in … / Check the weight: it should be in …: the value is in the wrong unit or mistyped.
- “Enter the height or the weight”
Questions people ask
- Which charts are used? WHO growth standards for 0–5 years and WHO references for 5–19.
- Should I measure lying down? For under-2s, length is measured lying down.
Open the tool: Child Height and Weight Percentile
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