Bundle of Joy Start free

Free tool, no account

Plot your baby on the WHO growth charts.

Enter a birth date, a sex and one or more measurements. This plots them against the World Health Organization growth standards for children under five and prints the percentile each one lands on. It runs in your browser: nothing is uploaded, nothing is stored, and you do not need an account.

Measurements
This prints numbers, it does not read them. A percentile says where one measurement sits among children of the same age and sex in the WHO reference population. It is not a score and not a verdict. Questions about your baby’s growth are for your pediatrician, who has the rest of the picture.

Source: WHO Child Growth Standards, weight-for-age, length/height-for-age and head-circumference-for-age, birth to 60 months, 3rd to 97th percentile. The same tables the Bundle of Joy app uses.

Keeping these by hand gets old. Bundle of Joy charts weight, height and head circumference as you log them, and makes a PDF for the appointment. Free for two parents.

Start free
A grey elephant carrying a baby in a blue bundle, three small hearts above its trunk.

Track it once. See it on the chart.

Weight, height and head circumference on the WHO charts, free, for both of you.

Start free Or get the Android app