How Much Should a 13 Year Old Weigh?

During their teenage years, it is not unusual for your child’s body to change quite dramatically and in a number of ways also. You want to make sure that your child’s body is developing as well as it should do but at the same time, you don’t want to put your child at risk of all the complications that come hand in hand with being obese.

There are problems with trying to work our whether or not your 13 year old is in a bracket considered to be ‘normal’. There are so many hormones rushing through their body that it can be changing at quite a dramatic rate and because of that, there isn’t one thing generally considered to be ‘normal’. Two people could be the same height but completely different in weight and still be classed as ‘normal’.

There are ways that you can work out whether or not your child is healthy. Let’s take a look:

How much should a 13 year old weigh?

In order to work out how much a 13 year old should weigh, you need to know a few other measurements in order to figure out their BMI or Body Mass Index.

how much should a 13 year old weighDuring puberty, there is a wide ratio of what is considered to be a normal height or weight for a 13 year old and it can range from 4 ft 7 to over 6 ft. Some of this will be down to genetics and other factors will include lifestyle and upbringing, diet, exercise, and more.

Girls tend to mature earlier than boys so they will go through their growth spurts at an earlier age. In 2002, studies showed that the average 13 year old girl was 62.6 inches tall – 5 ft 3 inches. Just one year later, at aged 14, the average height for a 13 year old girl was 63.7 inches or 5 ft 4 inches. A lot of change can happen during this time and for some kids, it might take longer than others.

The average weight of a 13 year old girl is between 82 to 137 pounds. The average seems to sit somewhere between 120-125 pounds.

The average weight of a 13 year old boy is between 80 to 135 pounds. The average seems to sit somewhere between 120-125 pounds.

The average height of a 13 year old now is considered to be 58 to 62 inches for boys and 60 to 63 inches for girls.

Weight will depend very much on a large amount of factors especially at this age. The BMI will be based on their height and weight but things like age will need to be taken into account as well as overall health, the body type or build, and even the percentage of body fat. Not one thing can be used to determine ‘normal’ weight.

Adult averages should never be used to measure teenagers because they are likely to be going through a growth spurt and the measurements could prove to be wrong. This could prove dangerous, either putting them into an overweight category when they shouldn’t be, or in an underweight one. This can affect a number of things and these are the years that correct information about food and eating should be learned, as should correct eating habits. If eating healthy isn’t educated, your 13 year old runs the risk of suffering at the hands of being overweight.

Ensuring Your 13 Year Old Is Fit & Healthy 

If you want to make sure that your 13 year old weighs what they should do, it is important to ensure they are eating healthy and getting the right amount of exercise. It is not advisable to put teenagers on a diet when there is no need because this can affect the way they think about their own body image, causing great emotional and mental problems later on in life. At the same time, it is unwise to leave an obese teenager to carry on with their own habits because it will cause them failures and problems with their health later on in life. There are a number of medical conditions linked with obesity – diabetes, heart disease, strokes, and even bone and circulation problems included.

At 13 years of age, a boy should be eating approximately 2414 calories per day. A girl should be eating slightly less – 2223 calories per day.

These figures are considered to be a guide and the amount of calories may need to be changed to allow for weight gain or weight loss where appropriate.

You should encourage your teenager to be eating healthily and this will include at least five portions of fresh fruit and vegetables per day. With smoothies and other drinks now offering at least one portion of this, there is no excuse. Making your own smoothies for breakfast is one of the easiest ways to increase your healthy food intake.

Low-fat options should be considered at all times, not to restrict food but to give a healthy way of eating foods. Learning what to have in moderation is also important so you should educate your child on this. Sugary, high-fat and calorific foods should only be eating in moderation and the younger you start teaching this lesson, the healthier your child is likely to grow up.

When it comes to exercise, you are advised to encourage your 13 year old to participate in an hour’s worth of exercise most, if not all, days of the week. This could be playing with friends in the park or a lesson of physical activity at school. It could also include walking to and from school as long as there is no dilly-dallying. The more exercise is forgotten about during the younger years, the more it will be forgotten about in the older ones too.

563 COMMENTS

  1. I’m 13 and I’m 5’5″(165cm) and I weigh 110 is it normal? It says underweight but I don’t look skinny.

    • You are in a healthy weight range. You may be underweight. If you feel as though you are overweight, then develop a healthier lifestyle. However, you are likely perfectly healthy. Develop a plant based diet, and abstain from consuming processed foods and added sugars. Maintain an exercise regimen of at least half an hour every day. Have a great day, Beatrice!

    • For your age and height, the healthy BMI is 78.3 lbs to 115.2 lbs. You are a little over, but that is not uncommon at this age. As long as you are eating a healthy diet and exercising enough, it shouldn’t be a major problem. If you are worried about your weight, you can always talk to your doctor to get advice.

    • You are in a healthy weight range. You will find benefit in maintaining a healthy lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Maintain a exercise regimen of at least half an hour each day. If you find health benefits in these changes, then continue to maintain that lifestyle. Have a great day, Itu!

    • You are in a healthy weight range. You will find benefit in maintaining a healthy lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Maintain a exercise regimen of at least half an hour each day. If you find health benefits in these changes, then continue to maintain that lifestyle. Have a great day, Itu!

    • Your height weight ratio is influential when determining your health. Depending on your height, you may be in a healthy weight range. It is possible that you need to gain or lose weight. It is clear that you will benefit from establishing a healthy lifestyle. Develop a plant based diet and abstain from processed foods and added sugars. Maintain an exercise regimen of at least half an hour every day. Have a great day, Samantha!

  2. Hi I’m a 13 year old girl at height of 5”7 and I weigh 147lbs. Is this okay because I do a bunch of sports and I people at school say I have larger muscles than the guys so am I overweight?

    • It is likely that your muscles are well developed due to your active lifestyle. Muscle is heavier than fat, so you may be heavy due to your muscle. You are in a healthy weight range, and you may find that your weight will change over the next few years Continue to maintain a healthy lifestyle. You may find benefit in developing plant based diet. Have a great day, Sasha!

    • The healthy BMI for your height and weight is 87.5 to 123.1 pounds. You are a little over that, but that might naturally go away as you grow taller. The important thing is to live a healthy lifestyle. Get the right amount of exercise and eat a healthy diet. Over time, a healthy lifestyle can help you lose weight if you want to. As a guy, you will most likely be growing significantly in the next few years, so the weight will probably go away on its own. As long as you have a healthy lifestyle, I wouldn’t worry about it too much.

  3. HI I’m 134 pounds and I’m 13. I do lots of exercise and a ton of sports. I’m not sure if I’m over weight or it’s just muscle. I don’t look fat I look more lean my thighs are kinda muscular.

    • You are active, so it is likely that you are in a healthy weight range. Your height and weight ratio is beneficial to be aware of. Muscle is healthy, and it is likely that you have plenty of exercise. Maintain a plant based diet, as this will support your health. Continue to nourish this healthy lifestyle. Have a great day, Olivia!

    • You are in a healthy weight range. It is likely that you are healthy and active. Develop and maintain a healthy lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Ensure that you exercise at least half an hour each day. Have a great day, Ashley!

    • You may be in a healthy weight range. You may need to lose weight. Maintain a healthy lifestyle and you will find benefits regardless. Develop a plant based diet and abstain from consuming processed foods and added sugars. Maintain an exercise regimen of half an hour each day. Have a graet day, Manuel!

    • Your stomach should not be perfectly flat. This fat is there to ensure that your body is maintained. Continue to nourish a healthy lifestyle. You will find that you will feel healthier and more attractive as you maintain a plant based diet and abstain from consuming processed foods and added sugars. You may also benefit from maintaining a healthy exercise regimen. Have a great day, Lack!!

  4. I am 13 years old, 5’5” (165.5cm) and weigh in at 108.8 lbs. I feel fat although I swim extensively for an hour and a half 4 days a week. Do you think I should lose weight? Maybe try 90-95?

    • You are in a healthy weight range. You are likely heavy due to your muscle. Continue to maintain a healthy lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Attempt to maintain a healthy exercise regimen. Have a great day, Alexander!

  5. I am a an almost 14 year old girl, I weigh 154 pounds, I am 5”4, 5”5 ish in height and I’m really upset about my weight. All I want is a flat stomach but I have a big stomach, like I can’t even grab it all with my hands. I cry a lot about it and I have sucked it in every day. I know I’m overweight and I weighed 168 before and I lost some but now I can’t seem to lose any more and we can’t get a treadmill or anything and I hate excercising in public . I don’t know what to do . I just want to lose it all as quickly as possible. What do I do?

    • You have lost weight, so you are aware that you are able to continue to lose weight. Maintain a healthy lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Maintain an exercise regimen of at least half an hour each day. If you are unwilling to workout in public, then workout in private. Have a great day, AK!

    • It is possible that you are in a healthy weight range. You may be underweight or you may be in an average range. You will find benefit in developing a plant based diet and maintaining a healthy exercise regimen. Maintain a daily workout routine of at least half an hour each day. Have a great day, Mckenzie!

    • You may be in a healthy weight range. You will find benefit in maintaining a healthy lifestyle. Maintain a exercise regimen of half an hour each day. Develop a plant based diet. Abstain from consuming processed foods and added sugars. Have a great day, Anon!

  6. Hi I am 13 Year’s old and I weigh 156 lbs I am also 5 foot 2 and sometimes I feel chubby but I do try my best to move around and dance every once in a while and drink plenty of water. I think I’m chubby and fat but my family tells me I’m skinny… which I think they are just saying that to make me feel good about myself is that healthy?

    • It is possible that you are overweight. You may be in a healthy weight range. Fat and muscle amounts differ between people. Regardless, you will find benefit in maintaining a healthy lifestyle. Maintain a plant based diet and abstain from consuming processed foods and added sugars. Maintain a daily exercise regimen of at least half an hour every day. Have a great day, Emily!

    • It is possible that you are overweight, and it is possible that you are in a healthy weight range. You may have excessive fat, or you may be thin with extra muscle. Regardless, allow your actions to influence you health in a positive direction. Maintain a plant based diet and abstain from consuming processed foods and added sugars. Maintain an exercise regimen of at least half an hour each day. Have a great day, Junior!

  7. I’m 13 almost 14 years old 170 pounds and my height is 5”6. I feel like I’m over weight and when I ask my parents they tell me that my weight is normal. But I feel like they’re just saying that so it doesn’t hurt my feelings.

    • It is possible that you are overweight, and it is possible that you are in a healthy weight range. You may have excessive fat, or you may be thin with extra muscle. Regardless, allow your actions to influence you health in a positive direction. Maintain a plant based diet and abstain from consuming processed foods and added sugars. Maintain an exercise regimen of at least half an hour each day. Have a great day, Rachel!

    • You are in a healthy weight range. You may find benefit in developing a healthier lifestyle. Develop a plant based diet and abstain from consuming processed foods and added sugars. Maintain an exercise routine of at least half an hour each day. Have a great day, Teresa!

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