Estimate a baby's approximate weight-for-age and height-for-age percentiles from age in months, sex, weight and height, using a bundled WHO/CDC-style reference table. This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
100% Local
How to Use the Growth Chart
Pick the sex, enter the age in months and the weight and height, then press Estimate Percentiles. You can leave either the weight or the height empty to estimate only the other.
Reading the result
A percentile shows how a measurement compares with a reference group of the same age and sex.
The 50th percentile is the reference median, not a target every baby must hit.
Healthy babies range widely, and growth curves are read as a trend, not a single point.
Ages up to 72 months are covered, using length up to about 24 months and height afterwards.
Features
Weight-for-age and height-for-age percentiles for boys and girls
Bundled WHO/CDC-style reference data, no download needed
Works with only a weight or only a height
This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
The bundled table is a smoothed approximation for general guidance. Your clinic plots measurements on the official chart for your child's age and sex.