Child height Calculator
There are various questions that you may have regarding your bundle of joy. Among them is how tall they will be in the future. You may have heard stories that children take after their mother in terms of height.
Some communities even believe that the height of the father is the primary determinant.
However, they are scientific formulas that you can use to get the most probable height that your child will reach. Yes, it is possible. And we are going to tell you how.
But first, let’s discuss some of the factors that determine the height of a child.
Factors Determining the Height of a Child
Questions regarding the height of a child arise even during pregnancy. And while various factors determine how tall they will be, genetics is the most powerful.
In the majority of the cases, children take after their parents in terms of height. That means they can be as tall as their father, or as short as their mother. But there are some cases where this is not always true. They may get taller than either of them, meaning that genetics may only contribute a portion of the total height.
So which are the other factors?
Science has so far shown that nutrition plays a critical role in height growth. That is why you see most overweight children being taller than most of the others. Growing tall requires energy, and it comes from proper nutrition.
Studies have shown that countries with a better GDP than the rest also have taller people than those in developing countries. That means societies that can afford a balanced diet get taller over time.
However, there have been questions as to the contribution of genetics to the height, and what ratio it contributes to the total height compared to other factors like nutrition.
According to scientists, between 60 and 80% is attributable to genes. The role of other environmental factors is between 20 and 40%.
The others include the hormones, and the most important among them is the growth hormone. Children that cannot produce sufficient amounts of growth hormone usually end up with a stunted stature. Health conditions such as arthritis will affect the growth rate, and eventually the final height.
Genetic conditions such as Down’s syndrome will also affect the height of the children. Those with Down syndrome tend to be shorter than the rest of the pack. Other rare conditions such as gigantism, where excessive amounts of growth hormones are produced cause the child to be larger than their age. Cancer can also slow down their age.
Gender is another factor that affects the height of individuals. For example, women are about 5.5 inches shorter than men in the United States. That is according to the CDC statistics.
Exercises have also been shown to be critical in helping the children attain their optimal height. However, intense workouts can have a reverse effect. They can drain the necessary energy and nutrients that your body needs to power growth.
As mentioned above, a balanced diet is essential for growing children, as it provides the proper nutrients for cell division and the energy to power it. Intense exercises can affect the much nutrients that your body gets for other processes.
Heritability and its Role in Predicting the Height of the Child
A good number of studies show that heritability contributes to about 80% of the child’s height. However, the figures vary between genders according to a Finnish study. It can be around 78% for men, and 75% for women.
The variances are quite apparent between racial groupings, mostly because of the environmental factors such as proper nutrition, and climatic conditions.
Heritability among the Asians and Africans is notably lower than that of the Caucasians. One study shows that heritability in West Africa is around 65%. This is the same with Asia in a country like China.
How to calculate the child’s height
There are various methods that you can use to determine the height of the child. Among the most popular include Khamis-Roche Formula.
The Khamis-Roche Formula is one of the safest methods to use acid does not expose the child to hazardous processes and materials. Another easy and reliable method is the Mid-Parental height formula. Both of these methods do not use the skeletal age practices.
Roentgen radiation uses x-ray imaging and is usually the most accurate. However, it is among the methods that can be quite harmful. In particular, it exposes the child to radiation.
With roentgen radiation, medical imaging is usually on the hand, and then the analysis determines the age of the child.
The Khamis-Roche Method
It is possible to predict the adult height of the child through a mathematical equation that uses the height of the parents, and the weight of the child.
However, this Khamis-Roche Method is only applicable to children above the age of 4. Wright State University developed the method in 1994 in Ohio. It is one of the most accurate methods that do not need the use of hand skeletons.
The six factors used in the equation include the father’s height, the mother’s height, the weight and height of the child, and their age. This method uses complex equations, and you should use it if you want to test your mathematical skills. Otherwise, use a website calculator.
The margin of error is 1.7 inches for girls and 2.1 for boys. But you should note that the method was developed for Caucasian children, and may not be useful for other ethnicities.
Mid-Parental Child Height Calculator and Formula
Using the Parental child Height Calculator, you can determine the most probable adult height of your child. The first step is to add the height of both parents and divide by 2.
From the figure you get, add 6.5 cm. Then subtract or add 10 centimeters from it, and that will be the range of height at which the boy child will be.
For the girls, add the height of both parents in centimeters and then divide by two. Deduct 6.5 centimeters from it to give you the mid-parental age of the girl child. Add or deduct 10 centimeters from it and what you get is the range at which you should expect their adult age to fall.
Skeletal Maturity Method
It is also possible to use the bone age study to determine the future height of a child. The process involves taking the x-ray of the left-hand fingers, palm, and wrist. The image is then compared to the others in a developmental atlas.
The bone development Atlas was created from an extensive study on children and helps in determining the age and future height of the child.
Typically, the growth plates are responsible for growing tall among children and stop growing when these plates close. Growth plates contain fewer minerals and are softer than the other bones, and that is what makes them visible in an x-ray image. The images of these growth plates are different at every age, and that is what the doctor uses for analysis and conclusion.
The differences in the skeletal age and chronological age can point to a particular problem, but that is not always the case. Some perfectly healthy children can have this disparity.
Through the skeletal age method, the physician can determine how long the child will still be growing, the final height, and the onset of puberty.
Doubling up is one of the simplest ways that parents can use to estimate how tall their children will be in the future quickly. The method involves doubling up the height of the boy when they are two years old.
For the girl, you double the figure of their age when they are one and a half years old. Girls develop much faster than boys, and that is why you double up their height at a much lower age than the boys. However, this is not a scientifically-backed method, and it can have significant variances. Regardless, it is a good way for parents to quickly estimate the future height of their toddlers.
The role of the growth chart
The growth charts are an essential tool that the doctors use to determine whether the child is growing as expected. The chart can be used to underscore anomalies in the growth process.
Typically, the basis for the growth chart includes head size, weight, height, and BMI.
The WHO charts are the most popular for children under the age of 2. However, if your child is above the age of 2, you can use the CDC charts.
Both the WHO and CDC charts can help determine the onset of puberty.
When Girls Stop Growing
The growth process between boys and girls is different. In particular, girls grow faster than boys when they are young. The growth rate of girls speed up during adolescence and reach an adult height at the age of 14.
The following growth chart from the CDC provides height estimates of different ages.
|4 yrs||3’ 3”|
|8 yrs||4’ 2”|
|12 yrs||4’ 11”|
|16 yrs||5’ 4”|
|20 yrs||5’ 5”|
When Boys Stop Growing
Puberty for boys comes later than for girls, and it is between the ages of 12 and 15. This is two years later than that of the girls. By the time they are 16 years old, the growth rate slows down.
The following table provides the median height of boys according to CDC figures up to their teenage years.
|4 yrs||3’ 4”|
|8 yrs||4’ 2”|
|12 yrs||4’ 11”|
|16 yrs||5’ 8”|
|20 yrs||5’ 9”|
How to Increase your Height?
As discussed above, your genes are the main factor that determines your final height. In particular, it affects between 60 and 80%, and in the majority of the cases, there’s nothing you can do about it. However, other factors such as environmental factors also have a role to play.
Nutrition is another critical factor, and it determines whether you achieve your maximum possible height or not. Your diet is what powers the growth process, and when it is not sufficient, you cannot grow tall.
It is important to note that the growth plates close after puberty, and no further growth happens after this. Therefore, nutrition can cause stunted growth, and the damage can be irreversible after puberty, after the closing of the growth plates. It is possible not to reach the average height of your parents if you are not eating a balanced diet as you should.
There are many claims out there about possible ways of increasing your height, even after puberty. For example, exercises and stretching are said to be effective. However, there’s still no scientific research to back these methods.
Your height changes throughout the day depending on the pressure to your spinal bones. That is why you are usually taller in the morning than in the evening, after a hard day at work. You can stretch to relieve the pressure and compression in your spinal bones, but that’s as far as you can go. The changes that result in stretching are mostly temporary.
Exercises are necessary to ensure a healthy body. It is when you are exercising that your body produces the growth hormone, together with other hormones that may help in the growth process. However, working out to gain height is most effective before the puberty years and the closing of the growth plate.
As a parent, you should make sure that your child eats a balanced diet daily and exercises often. A sedentary lifestyle where they spend their time mostly indoors is not ideal. It can affect the growth process.
They should also sleep enough, as it is during this time that their body produces the necessary hormones to support the various body processes that power growth. There should be a limit as to the time that the children play video games. It should not go into the wee hours of the night.