Growth Percentile Calculator

A percentile tells you where your child sits among healthy children of the same age and sex. On the 60th percentile for weight, your child is heavier than 60 in 100 children that age, and that is completely normal. What matters far more than any single number is that the percentile stays roughly steady over time.

How it works

Enter your child's sex, birth date and today's measurements. The calculator looks up the WHO Child Growth Standards (birth to 5 years) and the WHO 2007 Reference (5 to 19 years for height) and reports the percentile, the z-score doctors use, and the range that covers the middle 94% of children (the 3rd to 97th percentiles). Weight-for-age is defined to 5 years and head circumference to 5 years, the ages where they are meaningful.

Questions parents ask

What is a "normal" percentile?

Anywhere between the 3rd and 97th percentile is within the usual range, and most children sit somewhere in the middle. A steady line matters more than a high or low one: a child who has always been on the 10th percentile is growing well.

When should I worry about my child's growth?

A drop or rise across two major percentile lines over a few months, a weight percentile far below the height percentile, or measurements below the 3rd or above the 97th percentile are the usual reasons a doctor takes a closer look. This tool cannot replace that look.

Which charts does Bheeli use, WHO or CDC?

WHO. The WHO standards describe how healthy, breastfed children grow across six countries, and the Indian Academy of Pediatrics, the NHS and the American Academy of Pediatrics all recommend them under 2 years; the WHO 2007 reference extends height and BMI to 19.

My baby was premature. Should I use corrected age?

Yes, until about 2 years: subtract the weeks born early from the actual age. Enter the corrected age in months rather than the birth date.

Sources

Bheeli offers general guidance, not medical advice.