Head Circumference By Age Chart

The chart shows the average head circumference in centimeters for boys and girls at different ages.
Age 50th Percentile Head Circumference for Boys (cm) 50th Percentile Head Circumference for Girls (cm)
Newborn 34.9 34.5
1 Month 37.8 37.1
2 Months 39.8 38.9
3 Months 41.5 40.5
4 Months 42.8 41.7
6 Months 44.7 43.4
9 Months 46.3 45
1 Year 47.6 46.1
2 Years 49 48
3 Years 50 49
4 Years 51 50
5 Years 52 51

The Head Circumference By Age Chart provides information on the average head circumference for boys and girls at different ages. The chart includes the 50th percentile measurements, which represent the average size for each age group. The data is displayed in a table format, with the age in one column, the 50th percentile head circumference for boys in another column, and the 50th percentile head circumference for girls in the third column. The chart starts with measurements for newborns and goes up to 5 years of age. This information can be useful for parents, healthcare professionals, and researchers studying child development.


What is a head circumference by age chart?

A head circumference by age chart is a graphical representation that shows the average head circumference measurements for infants and children at different ages.

Why is head circumference important?

Head circumference is important because it can provide insights into a child's brain development and overall growth. It is often used as a screening tool for various conditions or abnormalities.

How is head circumference measured?

Head circumference is typically measured using a flexible measuring tape that is placed around the widest part of the head, above the eyebrows and ears. The measurement is taken in centimeters or inches.

What does it mean if a child's head circumference is above or below the average range?

If a child's head circumference falls above or below the average range on the chart, it may indicate either accelerated or delayed brain growth. Further medical evaluation may be needed to determine the underlying cause.

Are there any factors that can affect head circumference measurements?

Yes, head circumference measurements can be influenced by factors such as genetics, ethnicity, preterm or low birth weight, and certain medical conditions. These factors should be taken into account when interpreting the results.

How we write our statistic reports:

We have not conducted any studies ourselves. Our article provides a summary of all the statistics and studies available at the time of writing. We are solely presenting a summary, not expressing our own opinion. We have collected all statistics within our internal database. In some cases, we use Artificial Intelligence for formulating the statistics. The articles are updated regularly.

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