Boys · weight, height & BMI percentileWHO referencePrintable report
Boys Growth Chart Calculator
Plot your son's growth against WHO reference curves for boys. Enter his date of birth, weight and height to see his percentile for weight-for-age, height-for-age, BMI-for-age and (for infants) head circumference. Boys and girls use different reference curves, so this page is pre-set for boys.
Results
Enter details above and click Calculate.
Frequently asked questions
What is a growth percentile?
A percentile compares your child to a reference population of the same age and sex. A weight in the 60th percentile means about 60% of children that age and sex weigh less. Percentiles between the 3rd and 97th are generally considered within the normal range.
Which growth reference does this calculator use?
It uses the WHO growth standards (0–5 years) and WHO references (5–19 years), computed server-side. Indian paediatricians (IAP) recommend WHO standards up to 5 years; for older children IAP charts also exist, so discuss borderline results with your paediatrician.
Is a single percentile reading a diagnosis?
No. A child's growth trend over time matters far more than one reading. A sudden change in percentile band is more meaningful than the number itself. This tool is informational and does not replace a paediatric assessment.
What is the average height for a 12-year-old boy?
Around the 50th percentile, a 12-year-old boy is roughly 149 cm (about 4 ft 11 in), but the normal range is wide. Enter your son's exact age and height above to see his precise WHO percentile rather than relying on an average.
