If you want to find out the average weight for 8 year olds and the average height for 8 year olds, then you’re in the right place.
This guide gives you the average 8 year old weight in pounds, kilograms, and stones so that you can get the precise information that you’re looking for.
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What is the average height for an 8 year old boy in feet?
What is the average height for an 8 year old boy in feet? According to data from a US Vital and Health Statistics report, the average height of an 8 year old boy in feet is 4 feet 4 inches tall, which is equal to 132.1 cm.
Although an 8 year old boy is unlikely to be going through puberty, he will still get around 2 inches taller between the ages of 8 and 9.
Since height is heavily influenced by genetics, it’s entirely possible for a healthy eight year old to be a couple of inches taller or shorter than the average 8 year old height, depending on the stature of their parents.
What is the average height for an 8 year old girl in feet?
What is the average height for an 8 year old girl in feet? Based on government anthropometric data, which measured the heights of 186 eight year old females, the average height of an 8 year old girl is 4 feet 3 inches tall.
After the age of 8—and until roughly age 13—girls will grow to the same height as boys.
Indeed, between the ages of 8 and 9, the average girl will get about 3 inches taller. This is an even more significant growth spurt than that experienced by boys of the same age.
What is the average weight for an 8 year old boy?
What is the average weight for an 8 year old boy? According to US research, which weighed 218 eight year old boys, the average weight of an 8 year old boy is 69.8 pounds.
This is equal to 31.7 kilograms, which is just under 5 stone.
Pulling the average 8 year old weight and height together, we can calculate the average BMI. So, based on the calculations, the average BMI for an 8 year old boy is 18.1, which is considered to be slightly overweight by the CDC.
A boy will gain almost 10 pounds of body mass between the ages of 8 and 9. This shows that, even though a child may not be going through puberty just yet, they’re most certainly getting heavier as well as taller.
What is the average weight for an 8 year old female?
What is the average weight for an 8 year old female? Based on the data, which weighed 186 eight year old girls, the average weight of an 8 year old female is 69.1 pounds.
In kilograms, the average weight for a 9 year old girl is 31.3 kg, which is 4.9 stones.
As for body mass index, the average BMI for an 8 year old female is 18.7, which falls into the overweight category, but not by much.
As we can see, boys and girls are almost the exact same weight at the age of eight. This, of course, does change as boys enter puberty and start to accumulate muscle mass and increase in body height.
Additionally, although research shows that some 8 year olds of a normal weight would like to be slimmer—indicating an increasing body consciousness—it’s important that developing children don’t stunt their growth.
Instead, 8 years olds should aim to get daily exercise and consume a nutritious diet in order to maximize their physical development.
8 year old weight chart (boys)
This useful 8 year old boy weight chart shows the body mass percentiles for American eight year old males.
So, to illustrate, a boy whose weight puts him in the 75th percentile would, based on this data, be heavier than approximately 75% of males his age.
You can use this 8 year old weight chart to gauge just how heavy your son is in comparison with other children.
8 year old girl weight chart
This 8 year old girl weight chart works in the exact same way as the male version above; it shows you the body weight percentiles for 8-year-old American females.
So, if your daughter is in the 50th percentile, then she’s likely to be heavier than around 50% of girls her age.
The verdict: Who needs to know the average weight for 8 year olds?
Knowing both the average weight for 8 year olds and the average height for 8 year olds is important for assessing the physical development of your child.
Of course, the same data can also be used by healthcare professionals to determine if a particular child, given their genetics, is growing at the ideal rate or if they’re carrying excess body weight.
References
- Child Development: Middle Childhood (6-8 years old) | CDC. (2021, February 4). Centers for Disease Control and Prevention. Retrieved from https://www.cdc.gov/ncbddd/childdevelopment/positiveparenting/middle.html
- Berger, U., Schilke, C., & Strauss, B. (2005). Gewichtssorgen und Diätverhalten bei Kindern in der 3. und 4. Klasse [Weight concerns and dieting among 8 to 12-year-old children]. Psychotherapie, Psychosomatik, medizinische Psychologie, 55(7), 331–338. https://doi.org/10.1055/s-2004-834745