Track your child’s catch-up growth and progress with Duocal growth charts
Doctors use growth charts to compare a child's measurements with those of other children in the same age group. By doing this, doctors can track a child's growth over time and monitor how a child is growing in relation to other children. The growth charts your doctor uses for this purpose are a standard part of
There are different charts for boys and girls because their growth rates and patterns differ. For both boys and girls there are two sets of charts: one for infants ages 0 to 36 months and another for children ages 2 to 20 years old. The charts show the range of heights and weights at a certain age of thousands of children from across the country.
The commonly used standard growth charts include:
For children ages birth to 36 months (3 years):
For children ages 2 to 20 years:
What the percentiles mean
When you look at the standard growth charts, you will see seven curves that follow the same pattern. Each curve represents a different percentile: 5th, 10th, 25th, 50th, 75th, 90th, and 95th. The 50th percentile line represents the average for a particular age group. Your child's measurements will be plotted on the charts, so that the doctor can see how your child's measurements compare to the average for his or her age group. This helps the doctor determine whether your child is growing as expected. For example if a child’s weight at a checkup is at the 20th percentile, that means about 80% of children that age weigh more than that child, and 20% of kids in the United States weigh less than that child.
Just because a reading is high or low on the chart doesn't necessarily mean that there's a problem. If you are concerned about your child’s growth, talk with your child's health care provider.
Remember only measurements that are obtained in your child's doctor's office or taken by another properly skilled person should be plotted. Home measurements are frequently inaccurate and can lead to faulty data.
How to plot your child's measurements:
Find and print the right growth chart
Next, (step A on the chart below) find your child's age at the bottom of the chart and draw a vertical line (a straight line up and down) on the growth chart.
Now (step B on the chart below) find your child's weight on the right hand side of the chart, 30 pounds in our example, and lightlydraw a horizontal line (a straight line from side to side).
Step C involves finding the spot where these two lines intersect or cross each other. Find the curve that is closest to this spot and follow it up and to the right until you find the number that corresponds to your child's percentile (step D).