Use this tool to understand growth percentiles for height, weight, and BMI by age and sex. It’s designed for parents and caregivers: clear output, practical interpretation, and safety notes.
Safety note
Percentiles are screening information, not a diagnosis. If there are red flags (poor weight gain, sudden drop across percentiles, persistent feeding issues, lethargy, dehydration, breathing difficulty), consult a clinician.
Percentiles with clarity
Designed to show percentiles and a simple interpretation without heavy medical jargon.
Optional downloadable report
Download a short report (where available) to keep for reference or share with caregivers.
Fast, mobile-first
Short form inputs and clean output, built for real use on a phone.
A percentile compares your child’s measurement to a reference population for the same age and sex. One measurement alone is not the full story, tracking over time is often more meaningful.
Height/length percentile
Helps you see where stature sits relative to peers of the same age and sex.
Weight percentile
Useful for routine follow-up; sudden drops need clinical context and review.
BMI (where applicable)
A supportive metric that needs interpretation alongside diet, activity, and clinical history.
Tip for accurate results
Measure weight with minimal clothing, and measure length/height carefully (for infants use recumbent length; for older children use standing height). Inconsistent measurement method can change percentile outputs.
The calculator uses WHO growth standards for ages 0–5 and WHO growth references for ages 5–19. It does not calculate IAP percentiles. The report identifies the WHO standard or reference used.
Enter your child’s date of birth, sex, height or length in centimetres, and weight in kilograms. The tool calculates age and compares the measurements with its WHO reference data. Available measurements and charts depend on age.
No. The downloadable report contains results calculated from WHO data. It is not an IAP growth chart or a substitute for the chart your paediatrician uses.
Yes. Select boy or girl to use the corresponding WHO reference tables. The boys and girls links open the tool with that selection pre-set.
For ages 0–5, the tool shows weight-for-age, length or height-for-age, and BMI-for-age; head circumference is optional. For older children, it shows height-for-age and BMI-for-age. It does not show weight-for-age percentiles for older children.
The WHO 0–5 dataset includes infancy. Enter the date of birth and current measurements. Ask your paediatrician to interpret results for a newborn, a premature baby, or a child with growth concerns.
Yes. Its older-child calculations use WHO height-for-age and BMI-for-age reference tables covering 5–19 years.
Yes. After calculating, use the PDF download to keep the displayed results and share them with your paediatrician. The report identifies the WHO reference used.
This tool cannot determine whether a child is healthy from one measurement. Discuss the results and previous measurements with a paediatrician if you have concerns.
No account is required for the percentile calculation or PDF download.
The details you enter are sent to PingMeDoc to calculate the results and generate a report. If you choose to email a result, your contact details and result summary are also saved to process that request. See our privacy policy for more information.
Start the Growth Calculator
Enter date of birth, sex, height/length, and weight to see age-specific percentiles.
Boys and girls follow different WHO reference curves. Open the calculator pre-set for your child.
Privacy and responsible use
This tool is intended for informational screening and tracking. If you have concerns about growth, feeding, recurrent illness, or development, consult a clinician for personalized assessment.
