CircleBumpCheckedFilledMedicalBookmarkBookmarkTickBookmarkAddCheckBoxCheckBoxFilled

Understanding Child Growth Charts

Age, height, weight, BMI—here’s how it all comes together.
save article
profile picture of Korin Miller
Updated May 15, 2019

You love watching your child grow and kissing her chubby little arms and belly. But, given that obesity is such a big problem in this country, it’s natural to wonder at some point if your fleshy toddler is overweight. Know this: It’s completely normal for toddlers to appear chubby.

“Toddlers are short and compact, giving the appearance of a fat belly,” says Ashanti Woods, MD, a pediatrician at Baltimore’s Mercy Medical Center. There are a few other factors at play. Babies and toddlers usually have intestines that are a little oversized for their bellies, making those little tummies stick out, says Peter Greenspan, MD, vice chair in the Department of Pediatrics at Massachusetts General Hospital. They also have a forward curvature in their spine that pushes their bellies out, explains Danelle Fisher, MD, FAAP, chair of pediatrics at Providence Saint John’s Health Center in Santa Monica, CA. “As the child grows, the curvature straightens out,” she says. Combine all that with the fact that it’s just normal for little kids to have more body fat, Greenspan says, and you have all the ingredients for a round tummy.

As your child gets older and taller, the belly and chubby arms and legs tend to disappear, Woods says. Your child’s pediatrician is also tracking your child’s height and weight on a growth chart to see how they stack up against other children their age. If they suspect there’s a weight issue, it will be discussed at a well-visit. Still, it’s important for you to be aware of what’s considered average, and what’s not. Here’s what you need to know about the child growth chart, plus how to read it.

How Does The Child Growth Chart Work?

The growth chart looks at your child’s age, weight, and height and plots them on a chart, Woods explains. Once your child is plotted on the chart, his plot point falls on or near a percentage line that compares your child’s numbers with those of other children his age.

Related Video

How often is a child’s growth measured?

Children are usually measured every time they have a well-visit, Greenspan says. That means children have their measurements taken every three months until they’re 18 months old, every six months until they’re 3, and then every year after that, per recommendations from the American Academy of Pediatrics, Fisher says.

What does growth chart percentile mean?

After your child is measured, you’ll often hear your pediatrician say that she’s tracking on a certain percentile for height and weight. The 50th percentile is average, Woods explains. “So, once a child is plotted on the weight chart, if her dot is above the 50 percent line, then her weight is above average for her age,” he says.

Growth Chart For Boys

The following Centers for Disease Control and Prevention (CDC) boy growth chart outlines optimal growth measurements, including height, weight, and BMI, for children ages 1 to 3.

Growth Chart For Girls

The following Centers for Disease Control and Prevention (CDC) girl growth chart outlines optimal growth measurements, including height, weight, and BMI, for children ages 1 to 3.

What To Do If Your Toddler Is Measuring Above Or Below Average

If your pediatrician says that your child is above the 50th percentile for weight, don’t panic. “We cannot make a comment about being overweight until we see where her height dot falls,” Woods says. “If her height dot is also above the 50 percent, then she is proportionately above average, but not overweight.” The same is true if your child is measuring below average, Greenspan says. “For weight, we usually go the BMI,” he says. If your child’s BMI is too high, doctors generally want to try to figure out why (although, Greenspan says, it’s often due to poor eating habits). If your child’s BMI is too low, her doctor may look into whether there could be a medical condition that’s keeping her from absorbing enough calories.

For kids who are a little above average, doctors generally want more details about their behavior, like how often they’re eating fruits and vegetables, their activity level and whether they tend to get out of breath quickly, says Melissa Santos, PhD, a pediatric nutritionist at Connecticut Children’s Medical Center. “That’s when we become concerned when they’re plodding above where they should be,” she says. “Kids grow at all shapes and sizes, and some just tend to stretch out sooner than others.”

With height, doctors generally factor in genetics, Fisher says, calling it a “really important factor.” “I will have families where one parent is particularly petite or large, and if their baby seems to be petite or large, we can reassure the parents and investigate what they were like as a baby,” she says. “But if the mom and dad are extremely large and baby is petite and not growing well, that’s a red flag.”

How To Encourage Healthy Eating Habits In Toddlers

It’s pretty well-known that it’s tough to get toddlers to eat well, and you shouldn’t be hard on yourself if your child isn’t devouring his broccoli when you put it on his plate. “Toddlers are notoriously picky,” Greenspan says. “It’s best to offer healthy foods, not substitute junk, and hope that they will eat the right things.” If your child seems to want to survive on air and water, you should definitely consult with their doctor, but look at the big picture. “If they don’t have any medical or weight problems, you have to have faith that their bodies will get enough,” Greenspan says. “That’s usually what happens.”

There are a few ways to encourage healthy eating in toddlers. Santos recommends incorporating different colors and textures into your child’s diet, as well as getting your toddler involved in cooking. “Even at a young age, kids are more likely to try healthy things if they can participate in the making of it,” she says. So, have your toddler help rip up lettuce for a salad or mix things with a big spoon. “The more you can get them involved, the more you can encourage healthy foods,” Santos says.

And, of course, it’s important for you to help set a good example. “Kids aren’t going to eat things grown ups are squeamish about,” Santos says, so it’s important for you to try to eat well in front of your child to model healthy eating habits.

If you have questions about your child’s eating habits or are concerned about their growth, check in with your pediatrician. They will help address your concerns and make some suggestions to get you and your child on the right track.

Published April 2018

Please note: The Bump and the materials and information it contains are not intended to, and do not constitute, medical or other health advice or diagnosis and should not be used as such. You should always consult with a qualified physician or health professional about your specific circumstances.

save article
ADVERTISEMENT

Next on Your Reading List

mom kissing baby's feet
Do Babies Have Kneecaps?
Medically Reviewed by Dina DiMaggio Walters, MD
newborn baby swaddled in scrunch position on colorful background
What to Know About Baby’s Cute Little Newborn Scrunch
Medically Reviewed by Dina DiMaggio Walters, MD
child having an eye exam at pediatric ophthalmologist
1 in 3 Kids Worldwide Is Now Nearsighted, Study Shows
By Wyndi Kappes
ADVERTISEMENT
baby clenching fists
What Does Fist Clenching in Babies Mean?
Medically Reviewed by Dina DiMaggio Walters, MD
dad helping baby walk at home
Viral Hack Could Save Your Back as Baby Gains Confidence Walking
By Wyndi Kappes
baby on weight scale in doctor's office
Average Baby Weight in the First Year
Medically Reviewed by Dina DiMaggio Walters, MD
Dad's Hilarious Video About Baby 'Not Having Kneecaps' Goes Viral
Dad's Hilarious Video About Baby 'Not Having Kneecaps' Goes Viral
By Wyndi Kappes
ADVERTISEMENT
doctor measuring baby's head circumference
Infant Growth Charts: Tracking Baby’s Development
Medically Reviewed by Lauren Crosby, MD
Why Baby Hates Tummy Time (and What You Can Do to Help)
Why Baby Hates Tummy Time (and What You Can Do to Help)
Medically Reviewed by Lauren Crosby, MD
baby doing tummy time while holding head up
When Do Babies Hold Their Head Up?
Medically Reviewed by Dina DiMaggio Walters, MD
ADVERTISEMENT
sad beige parenting and neutral baby decor
How Colors Play a Role in Baby’s Development
Medically Reviewed by Dina DiMaggio Walters, MD
baby using the pincer grasp while playing with block toys
What Is the Pincer Grasp?
Medically Reviewed by Lauren Crosby, MD
mother playing with baby during tummy time
What Are Gross and Fine Motor Skills?
Medically Reviewed by Lauren Crosby, MD
ADVERTISEMENT
baby grabbing toy while lying down
When Do Babies Start Grabbing Things?
Medically Reviewed by Lauren Crosby, MD
baby grasping mom's finger, palmar grasp
What Is the Palmar Grasp Reflex in Babies?
Medically Reviewed by Dina DiMaggio Walters, MD
teaching baby to walk
Baby’s First Steps: When Do Babies Start Walking?
Medically Reviewed by Loretta Cody, MD
baby and mom clapping and smiling on couch together at home
When Do Babies Wave, Clap and Point?
Medically Reviewed by Loretta Cody, MD
ADVERTISEMENT
Baby with ball
Babies Develop Self-Awareness as Young as 4 Months Old, Study Suggests
By Wyndi Kappes
mother looking at baby in bassinet
When Can Babies See Clearly?
Medically Reviewed by Lauren Crosby, MD
top view of baby drawing with crayons
This Simple Hack Will Help Your Child Get the Right Grip on a Pencil
By Wyndi Kappes
ADVERTISEMENT
Article removed.
Article removed.
Name added. View Your List