What Size Should The Bike Be

Choosing a bike by height (choosing the size of the bike frame).

Online ordering of bicycles is becoming more and more popular. Don’t worry about having to try on your bike first. This approach is very overrated! City bikes and cruisers often have no height differentiation at all and are positioned for cyclists with an average height of 155-180 (women) or 165-190 (men).

There are many good methods for choosing a sports bike to choose the right one, below we will take a look at the one we use ourselves. The size of the bike is measured from the beginning of the seat to the bottom bracket, as in the image below.

size, bike

Take off your shoes and stand with your feet about 15-20 cm apart (shoulder width apart). Measure the height from ground to crotch. Decide which type of bike you need: mountain bike, city bike, or road bike. Now you can take a calculator and calculate the size you want:

City bike. leg (cm) x 0.685 = your frame size

Mountain bike. leg (cm) x 0.66 = your frame size

Road bike. leg (cm) x 0.70 = your frame size

For example, if your leg is 76 cm long, then the correct size for a mountain bike is 50 cm or 20 inches, a road bike is 53 cm, and a city bike is 52 cm.

For generalization and convenience, below is a table that can be used when selecting a mountain bike.

Rider Height (cm) Leg Length (cm) Recommended Frame Size
145-15860-7313 “/ 14”XS33-36
155-17263-7615 “/ 16”S34-40
168-18266-7817 “/ 18”M43-47
178-19068-8119 “/ 20”L48-52
185-20071-8321 “/ 22”XL55-58
200-21073-8623 “/ 24”XXL59-62

This table is most relevant when choosing a mountain bike with no rear suspension. When choosing a bike with a rear shock absorber, the geometry may differ depending on the purpose of the frame. In this case, it is best to check the information on the manufacturer’s website. At the same time, the size of a modern bicycle will be the same for a mountain bike with 26 “wheels, including fat bikes, and for a mountain bike with 27.5″ wheels, and for a bicycle with 29 “wheels.

Hybrids, road bikes, cyclocross bikes, gravel bikes, road bikes, and track bikes all have different geometries, which makes the size chart different for them. On average, the sizes of different brands and directions can be combined into one table:

Rider Height (cm) Recommended Frame Size
145-158XXS47-50
157-163XS49-51
163-170S51-54
170-178M55-57
178-183M / L57-59
183-190L58-60
190-200XL61-64

The height of the saddle extending from the seat tube is important when choosing a sports bike. Even a couple of centimeters difference in saddle height can affect pedaling power by up to 50%.

Bike Model Recommended Height (cm)
Stels Pilot 3 / Desna 2100140-180
Stels Pilot 4 (7) / Desna 2200 (2500)150-200
Forward / Altair150-200
Shulz hopper140-180
Shulz (other bikes)150-200
Author150-195
Strida LT, 5.2153-193
Strida SX, SD, C1160-200
Giant / Dahon / Dewolf160-180
Langtu (14-18 “)140-180
Langtu (20-24 “)150-200

Unlike adult bicycles, which have different frame sizes depending on the rider’s height, children’s bicycles are measured by the size of the wheel. You can read more about the selection of a children’s bike at the end of the article, but you can average in one table:

Child’s age (years) Height (cm) Wheel diameter (inches)
1-3Up to 95Up to 12 “
2-485-10512″
2-595-110fourteen”
4-6100-115sixteen”
5-8100-12018″
7-9115-13520″
9-11130-14524 “
From 10From 14026 “

Problems when choosing an inappropriate bicycle size and options for solving them There are elements of a bicycle that you also need to pay attention to when choosing a size: handlebar stem, handlebar and seatpost and the position of the saddle in it.

If you have already bought a bike that is too big, the fit can be slightly corrected by replacing the stem with a shorter stem or by extending the saddle in the “rails” to a position closer to the handlebars.

If the size is too small, the problem can be corrected by installing a longer stem with a wider handlebar or replacing the seatpost with a longer one with a backward bend.

Choosing the Right Size and Approximate Age

Choosing the right bike size for your child may seem like a simple exercise, but often parents do not consider other parameters besides age. As you will see from the recommendations we made below, many of the sizes overlap in age and are more dependent on height, not to mention the confidence and ability of each individual child.

Many people choose a bike “for growth”, but it is important to consider that as the size of the wheels of the bike increases, so does its weight. In addition, a taller and lighter bike will also have a higher center of gravity, making it harder to balance and maneuver. As a result, if you choose a bike that is too big for your child, then riding may simply not be fun. Use the age and height guidelines below as a guide, and remember that is the best way to know if your bike is the right size. it’s to try on the bike live and let the child ride.

It is also important to note that unlike adult bicycles, which have a different frame size depending on the cyclist’s height, children’s bicycles are measured by the size of the wheel.

Age from 18 months / balance bikes (bike runs, balance bikes)

Balance bikes are designed for children aged 18 months and older and teach balance, fine motor skills and good habits. These bicycles do not have pedals and are propelled by a child pushing himself with his feet. These bicycles are the easiest to learn to balance, and by themselves they are the lightest of children’s bicycles. There are balance bikes with wheel diameters from 10 to 20 inches. Wheels can be plastic with EVA tires or inflatable rubber. The former are much lighter, but have good grip only on hard or tamped surfaces. If you plan to ride outside the city, it is better to choose a balance bike with inflatable wheels.

Age 2. 4 years / Wheel size 12 inches

Bicycles with 12 “wheels are usually the first pedal bike for a child. Designed for ages 2 to 4, or 85 to 105 cm tall.Since this is often the first bike, it is best to opt for a simplified design without components that might complicate the riding experience, such as multiple gears, lever-operated rear handbrake or front suspension.

Feeling comfortable is critical to the very first bike, so make sure the fit is correct and your child is happy with the bike’s appearance. The frame can usually be made of steel or aluminum. Aluminum is lighter, not susceptible to rust, but also significantly more expensive.

Often, such a bike is equipped with side balance wheels. Sometimes there is a brake with a handle on the handlebars, but children of this age usually do not have enough finger strength to brake.

Age 2.5 / wheel size 14in

Bicycles with 14 “wheels are not much different from bicycles with 12” wheels. A bike of this size is suitable for a height of 95-110 cm. Large wheels provide better stability, a smoother ride and increased speed. Not all brands make bicycles with a diameter of 14 inches, so the choice of tires and spare tubes for such bicycles is much lower.

Age 4.6 / wheel size 16 inches

This bike can be the next step after a bike with a wheel diameter of 12 or 14 inches, and immediately after a balance bike. Wheels with a diameter of 16 inches are suitable for height 100-115 cm or ages 4-6.

The frame of such a bicycle can be made of steel or aluminum. Aluminum is lighter and less prone to rust, but more expensive. Many bikes of this size have only a rear coaster brake for simplicity’s sake. Sometimes complete with front handlebar, but some bikes have both brakes with handlebars. Children of this age have sufficient strength to use these brakes, but before purchasing, we recommend that you ensure that the brake lever is specifically designed for small hands.

Age 4.6 / wheel size 18 inches

Just as a 14 “bike is an alternative to a 12”, an 18 “bike is an alternative to a 16″. A bicycle with 18 ” wheels is suitable for height 100 to 120 cm and ages 4 to 6.

Age 7.9 / wheel size 20 inches

20 “is the most popular kids bike size on the market. In addition, it is at this stage that children usually really begin to feel the bike and understand the feeling of freedom to ride it. This bike is suitable for a height of 115-135 cm or for those who are between the ages of seven and nine.

Already at this stage, bicycles begin to be clearly classified into disciplines such as mountain bike or MTB, road bike and extreme bike or BMX.

Children’s mountain bikes may contain the same technologies as adult sports ones: rear suspension, a large number of gears, disc brakes. However, the rear suspension adds a significant portion of the bike’s weight and reduces its durability, or the bike will cost the same as a good adult sports bike. The front suspension provides shock absorption and more control in tough terrain, so only needed in tough terrain. Therefore, for city driving, we recommend considering options without a suspension. In a city with such flat terrain as St. Petersburg, a large number of speeds is also not necessary, because it greatly complicates the design of the bicycle and affects the durability. Road bikes with 20 ”wheels generally have narrower flat tread wheels. Comfort models come with full-size rigid fenders, a wide saddle and footrest. Sports road bikes sometimes even have a ram bar and a large number of speeds.

BMX kids’ bikes are a popular choice as they have a large margin of safety and often have a simple yet striking design. Also, a big plus is that if a teenager likes BMX as a sport, he can ride his first BMX for a rather long time, because adult bicycles have the same wheel diameter and similar geometry.

Age 9.11 / Wheel size 24 inches

24 “bikes are often the last step towards an adult size bike and are suitable for those between nine and eleven years old or 130-145 cm tall.

Like 20-inch bikes, mountain, BMX and road models have distinctive features. 24 “mountain bikes have more speeds and more suspension travel than 20” mountain bikes. Also mountain bikes with 24 ”wheels can often be equipped with disc or rim brakes with handlebars.

24-inch road bikes extend their gear range to 21 and 24-speed, have slicker tires for higher speeds and lighter frames if your kid has racing ambitions.

Age 11 / wheel size 26 inches

26-inch bicycles are suitable for children from eleven years old and those who are taller than 145cm.

Previously, bicycles with such a wheel diameter were considered only for adults, but with an increase in the diameter for adults to 27.5-29 inches, it became clear that children can ride bicycles with 26 wheels, but with a small frame.

How to choose a bike for height: a table for children

All children are very active. They like to run, jump, race down the street on a scooter, roller skate or bike. So that riding does not lead to injuries, a bicycle for a child should be chosen very carefully, following many rules. Therefore, parents’ questions about how to choose the right children’s bike are always relevant. After making such a purchase, moms and dads want to be sure of the safety of their child, take care of his health. If you ignore all these requirements, then the bike can be not only inconvenient for riding, but also hazardous to health. And, of course, it will not bring any pleasure to the baby. How to choose a bike for a child will be discussed in our article.

Classification of children’s and teenage bicycles

The first thing to understand is the classification of bicycles. There are two main classifications. by type and by wheel diameter.

By type, bicycles are:

  • mountain;
  • road;
  • urban;
  • tourist;
  • folding;
  • for freestyle;
  • track;
  • children and others.

Professionals classify children’s bicycles according to the diameter of the wheels corresponding to the height of the child. So, for example, when a baby is 85-110 cm tall, 12-inch wheels are selected. If the child is 110-125cm tall, 16 “wheels will do (with a frame size of about 9”). For children 115-135cm tall. wheels have a diameter of 20 inches.

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If the child is between 125 and 150 cm tall, the wheels must be 24 “(frame about 13”). There are teenage bicycles with 26-inch wheels, designed for a child’s height from 135 to 160 cm. this is a type with a low frame of 14 inches.

Basic rules for choosing a children’s bike

When choosing a bike, it is important to remember that the rule “buy for growth” in this category of products is absolutely inapplicable, otherwise it is fraught with multiple and frequent injuries.

Since with the same height in children, the height of the legs can differ significantly, then it is imperative to take the future owner on a trip to buy a bicycle. It is clear that such an acquisition will no longer be a surprise, but it should not be a disappointment either.

Based on the classification of bicycles, based on the height of the child, the size of the wheels is selected. It can also be calculated using a simple formula: height in centimeters is divided by two and a half and again by 2.54 (inch in centimeters).

In this case, the optimal length from the front end of the saddle to the handlebar should correspond to a value equal to the distance from the fingertips of the child’s hand to his elbow. this is how the length of the frame is selected.

Mostly in bicycles for children and teenagers, each wheel size has its own frame size.

After choosing the wheels and the length of the frame, the bike itself follows. The child is placed on the bike while standing, so that the frame is between the legs, while the distance from the frame to the crotch should be 7-10 cm. This is necessary to safely jump off the bike. Then, in a sitting position on the saddle, check whether the fully extended leg reaches the lower pedal and whether the knees touch the steering wheel when pedaling.

In bicycles, the handlebar and seat are height adjustable. Therefore, if by some criteria the bike fits, but by some it is not, then you should try to adjust it. The steering wheel must be suitable for both height and slope. The steering angle must not exceed 90 °.

How to choose a children’s bike: general recommendations

It is important to take into account not only the height of the child, the size of the wheels, but also such characteristics as the material of the construction of the bicycle, its weight, the braking system, the design of the chain, the availability of accessories. And it is imperative to pay attention to safety.

The weight of the bike depends on the frame material and the number of accessories. If the child will carry the bike on his own, then this must be taken into account. The steel frame and parts are, of course, highly durable, but their weight leaves much to be desired.

When choosing a children’s bicycle, aluminum is preferred. This is especially true for bicycles for girls. If dropped, it is easier to lift with fragile handles.

You should not save on the protection of the chain (it is protected with a special metal cover), although it increases the weight of the structure, it ensures the safety of the child. it excludes the entry of clothing parts into the chain and thereby the risk of injury.

Chain protection is also necessary for those considerations that road dust, dirt, water and sand, getting on the chain lubricant, significantly impair its performance properties, acting as an abrasive.

Any model of a bicycle must be equipped with a reliable braking mechanism. In the standard range for the younger age category, this is a foot brake that allows you to brake by sharp pedaling in the opposite direction.

The hand brake is already used in the complete set of bicycles for schoolchildren. It is not recommended for preschoolers due to the lack of force necessary to compress the brake lever. Also, they are not put on the grounds that little children do not have sufficient concentration of attention and can simply get confused at the right time. For the same reasons, children’s models do not have a speed switch.

Fenders (to protect against dirt flying from under the wheels), headlights, reflectors and a bicycle helmet will not be superfluous in the complete set of the bike. On girls’ bicycles, baskets are often attached to the fork. If desired, bicycles are equipped with rear seats. luggage racks.

How to choose a bike for a child 3-4 years old

At this age, children still do not know how to balance well, therefore, preference is given to models with four wheels, where there are 2 main large wheels and 2 small safety wheels located on either side of the rear wheel. They can be easily removed when no longer needed.

You should not raise small wheels above the surface level, since in this case the child, placing emphasis on one of the wheels, will roll in an inclined position, which fundamentally contradicts proper driving. In addition, it is dangerous. you can lose balance and turn the bike over.

Bicycle handlebars should have foam protection (to cushion in case of head impact) and a rotation limiter around its axis. The saddle should be strong, soft, preferably rubberized.

Both the handlebar and the saddle must be adjustable for the bike to last as long as possible. Bicycles of this configuration are usually equipped with a rear foot brake and one speed.

The design of the bike itself assumes the presence of a strong lowered frame, which is why the weight of the model can be impressive, and the presence of additional wheels makes it also large-sized.

Since the average height of a child at the age of 3-4 years ranges from 98 to 110 cm, the diameter of the wheels will be 12 inches. The wheels already have a rubber tube. For safety reasons, the circuit must be covered with a metal guard.

How to choose a bike for a child 5-7 years old

The lineup of this age category is not much different from the previous one. The main difference is the diameter of the wheels. Depending on the baby’s height (on average, it ranges from 110 to 128 cm) and the length of the legs, both 16-inch and 20-inch wheels can be used. They are more stable, their shock absorption properties are better than that of 12-inch ones, which allows the child to overcome uneven roads with ease.

For kids 6-7 years old, the bike may already be equipped with a hand-type front brake. The rear foot brake is a must. it is reliable and acts as a guarantor of safety. The speed switch at this age is not yet relevant.

Safety wheels may still be needed until the child feels more confident. The chain and handlebars must be protected. Consideration should be given to additional protection for the rider. knee pads, a bicycle helmet and elbow pads at this age will help protect the baby in the event of a fall.

You should pay attention to the material of the frame and spare parts. preference is given to aluminum structures, since schoolchildren prefer to transport their “iron horse” themselves, especially over high curbs. A must-have alarm bell for extreme situations.

How to choose a bike for a child 8-10 years old

The range of bikes for middle school children may be similar to the configuration for toddlers 5-7 years old, or it may be identical to adult models. Wheels will already be 20 inches in diameter, but sometimes, depending on the child’s height, 24 inches, there are no safety wheels.

In this model range, attention is already being paid to the pedals. they must be very durable, ideally metal. An additional function also appears. a speed switch. A handbrake is required, and both front and rear can be located on the handlebars. Protective equipment remains relevant.

How to choose a bike for a teenager

In fact, these are adult models with a reduced frame and a wheel diameter of 24 inches. If a teenager’s bicycle with such wheels is small, then the choice falls on adult models with a wheel diameter of 26 inches.

The choice of a bicycle for a teenager should be approached taking into account his wishes and preferences. Many young men prefer stunt bikes, bicycles for motocross (BMX), freestyle, turf, freeride, downhill. You can’t do without professional advice.

If the bike is not intended for stunts, but involves riding on small off-road, city roads or in the yard, then you should pay attention to the following characteristics.

Models for girls and boys are already significantly different. In structures for boys, the frames are reliable. steel, and for girls, they are lightweight, made of aluminum alloys and have a configuration with a lowered top bar. In addition, the saddle design for girls is different from that for boys.

In youth models, there is already a 24-mode speed switch (maybe less). Models are equipped with hand brakes and shock absorbers. The braking system can be disc and V-shaped. Disc preferred, but not on track bikes.

Choosing a bike, an important point is that you should pay attention not only to technical characteristics, but also to the assessment and opinion of the child himself. his desire to ride depends on this, thereby learning the world, finding new friends and playing sports.

Instead of a conclusion

If all the requirements are met when buying a bicycle for a child, then such a bicycle will bring him maximum pleasure. And parents will not have to worry that the “iron horse” can harm their child. True, in addition to making the right choice, safety is also influenced by how your kid rides a bike, whether he observes traffic rules, whether he drives fast and much more. You will need to talk about all this with your child so that a new purchase does not cause injuries.

What size should a member be at 13 years old

The question of the normal size of the genitals in accordance with age does not cease to bother modern minds, thanks to technological progress and the population’s tendency towards a healthy lifestyle, the diet of adolescents has been improved with trace elements, vitamins and other food additives, thus the number of accelerated boys has increased.

What size should be

The trend towards early development is observed in all countries where the population has access to a balanced diet, and even if physical maturation is more pronounced by the age of 13, the same cannot be said about mental and psycho-emotional development.

As a result, the child’s mind is, as it were, imprisoned in the body of an almost adult person, and this leads to both justified and unjustified experiences in connection with their body. Therefore, many teenagers and their parents think about how big a member should be at 13.?

Average penis length at 13 years for Russian boys

The first who was not afraid to explore the sexuality of the human body, Alfred Charles Kinsey is an American biologist, sexologist, professor of zoology and entomology. His research practically overturned the moral codes of Christian society, provoked both approval and caused considerable scandals. But it is in his tables that you can find comprehensive information regarding the growing up of a person from a very young age.

Thanks to him, certain taboos were removed, the curtain was slightly opened for other scientists, unfortunately, there is little research on this topic, most likely this is due to restrictions due to legislative norms, because specialists especially do not want to risk their careers in order to measure children’s merits, even if such observations would be very useful for studying the characteristics of a nation and its development.

Still, certain studies on this topic in Russian-speaking countries help to navigate the norms of adolescence. Russian boys are inferior in size to the reproductive organ of the Negroid race and have an advantage over children from Asia and Korea.

In the work “Indicators of the physical and sexual development of adolescent boys”. it was concluded that most of the thirteen-year-old adolescents entered the puberty phase and the length of their penis without an erection is 5. 7 cm. Those who have not yet expressed pubic hairy cover, in a non-erect state had a genital organ length of 2.7 cm.

In the scientific work “Delayed sexual development in pubertal boys”. it is specified that indicators below 2.4 cm indicate the presence of deviations.

The average length of the penis at this age is not the best indicator that could be guided by, since only 60% of young men experience nocturnal emission, the presence of secondary sexual characteristics and the appearance of libido.

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What is the normal male size at 13

Indicators of normal penis size at 13 are closely related to the degree of sexual development of each individual individually. Basically, after 11-14 years in the body of the future man, the level of testosterone increases significantly, and this serves as the starting point for the growth of the testicles and the lengthening of the phallus.

Therefore, at the age of 13, the norm can be as much as 3 cm in a calm state and 8 cm in an erection, as well as 9 cm / 16 cm or more. But the final size is determined by genetic predisposition. If the father of a teenager is “gifted”, then there is a high probability that his son will also be fine.

According to Kinsey’s work, the average penis size at 13 years old is 8 cm, while those who have reached puberty can boast of 14-15 cm in an erect state.

What do doctors think

Doctors are more concerned about situations regarding a child’s developmental lag, both intellectually and physically, rather than growing up too early.

Reasons for delayed puberty:

  • genetic disorders;
  • kidney disease;
  • malnutrition;
  • disorders of the central nervous system;
  • chronic diseases;
  • hormonal disorders;
  • obesity;
  • cryptorchidism.

If you do not observe an increase in muscle mass, changes in body proportions and other signs that indicate the onset of puberty, or a teenager really has a very small penis (micropenis), then it will not hurt to visit an endocrinologist, and in more advanced cases, even a surgeon.

Mom’s opinion

Oddly enough, but it is the mothers of the boys who most often ask questions on the forums about different norms, as they are very worried about their child. On the one hand, excessive anxiety is due to the fact that a woman does not know exactly how a boy should grow up; some, at the sight of a spontaneous erection in infancy, even think that a son can become a maniac. At the same time, girls tend to exaggerate some aspects and panic from scratch.

If there is a dad nearby, everything is not so difficult, you can always turn to him for help so that he would share his experience or personal opinion on the question “What is the normal size of male dignity at 13?” It is the father who is the first in “this topic” to give the best advice.

By the age of 13, as a teenager, my mother’s overprotective may seem annoying, but if you still appear on the doorstep of the room with a ruler in your hands and the question, “Well, sonny, shall we try on a penis?”. this approach is not the best way to establish communication and solve the alleged problem.

So how many cm should a member be at 13 years old? At this age, such a question is asked by the children themselves on the forums, who are anonymous and who are open, while some worry if they have 15 cm in an erection, and others when they have 10 cm in a riser.

If a fluff appears above the upper lip, the armpits exhaust a stronger smell of sweat, although in the rudiment, there is already pubic hair and the scrotum changes color to dark and increases in volume; worn underpants have a specific smell of male genital glands and the proportions of the body change, even without the onset of the phase of breaking the voice, rest assured, your child is on the right track.

In this difficult period of life, it is better to treat all problems with understanding, to be a reliable support and advisor, and if there is a trusting relationship, your boy himself will turn to you for help.

What size should a member be at 18 at 19 and at 20?

Men, and teenagers in particular, care about the size of the penis. Perhaps 80% put a ruler on their penis to make sure they were within the average. Until the age of 18, it is impractical to measure the phallus, since the length and thickness of the organ increase precisely until this age.

At the age of 18, when the size of the penis does not correspond to the average, it is hard not to worry. Constant comparison of oneself with others leads to insecurity and fear, problems with the opposite sex. In turn, all this affects the psycho-emotional state.

How many centimeters should a member be at the age of 18? There is no clear framework for normality. All penis sizes larger than 4-6 cm (micropenis) are considered the norm. However, this information does not comfort anyone, since the size of the phallus affects the quality of sex life.

Let’s try to figure out what penis sizes are normal at 18-20 years old? What size is considered average, and what affects the increase in manhood?

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Penis size at 18 years of age

Boys are born with a penis 2-4 cm. This is the norm. Until the age of five, there is no visible growth of the penis. Before puberty, the length / thickness changes slightly. The active growth of male dignity comes to light during puberty. By the age of 18, the length, thickness and shape of the penis are fully formed, and do not change throughout life.

Puberty occurs at different times in all boys. Some guys notice penis growth at 10-11 years old, while others have a visible increase in phallus at 13-14 years old. And then, and, then is the norm. In addition to the growth of the penis, secondary sexual characteristics appear during puberty.

These include increased hair growth on the face, in the perineum, and in the armpits. The foreskin is fully developed, the skin of the phallus and scrotum changes, the testes are enlarged, etc. The size of the penis at 18 years old at rest is about 10 cm.

Penis size chart (at rest) depending on age:

Ageeleven1213fourteenfifteensixteen1718
Height (cm)136-148140-154144-160152-168159-175169-179170-176170-190
Penis size3-54-65-76-86-87.5-97-1010-12

Thus, the average penis size at 18 years old (at rest) varies from 10 to 12 centimeters. Independent increase in the length of the penis at the age of 19 is impossible, since the man’s penis is finally formed by the age of eighteen. However, in medical practice, there have been cases when the reproductive organ grew up to 20 years of age.

The size of the penis during erection, depending on age:

Age1213fourteenfifteensixteen1718nineteen
Penis length (cm)10.312.914.9fifteensixteen1716.916-18

Penis sizes at 20 are the same as at 18-19 years of age. The thickness of the reproductive organ changes during puberty. The girth of manhood at twenty years old is 12-13 centimeters.

During adolescence, the curvature of the penis forms. Few boys have an organ curvature before puberty.

What affects the length and thickness of the penis?

Why did one man’s penis grow to 20 cm, and the other guy’s no more than 14 cm? There are many answers to this question. Scientists have not yet come to a consensus. But many believe that it is a genetic predisposition. But at the same time, no one excludes the influence of other factors that took place during the pregnancy of the mother, since the size of the organ is laid in the womb.

The final size of the genital organ is due to heredity. It is believed that genetics determines not only the size of the penis in a particular family, but also in representatives of different races. For example, the stronger sex of the Mongoloid race has a smaller penis than men of the Caucasian race. And the largest penises in black men.

Factors present in puberty have a significant impact on the final size of the phallus. Growth can be affected by endocrine disorders, hormonal disruptions, problems with the genitourinary / reproductive system, abnormal testicular development, testosterone deficiency, high concentration of female hormones.

  • Ecological situation.
  • Food habits.
  • Smoking, alcohol.
  • Mom’s pregnancy.
  • Mother’s lifestyle.

In obese men, the penis looks smaller than it actually is. This is due to a thick layer of fat in the pubic region, which visually shortens the penis.

Average size of the penis

According to many statistical sources, the average penis size varies from 13 to 15 centimeters (this applies to men over 18). Doctors distinguish 4 types of genital organs in men. The classification is based on the length of the genital organ. Micropenis. in the maximally stretched position, the penis is 4-6 centimeters. Small organ. up to 12 cm, norm. 12-18, large phallus. from 18 centimeters.

Many men measure their penis. For some representatives, this action ends with joy, while others are disappointed. But it should be emphasized that micropenises and giant members (from 20 cm) are very rare, as evidenced by the table:

The length of the penis in erect state (in centimeters)Percentage of men
10-12nine
12-1434
14-16thirty
16-1820
than 187

As the table shows, the small size of the penis is detected only in 9% of men. A micropenis occurs only in 0.1% of cases. An abnormal size of an organ is considered a disease and requires appropriate treatment. In most paintings, it is done surgically. Often the micropenis is combined with other pathologies, for example, improper location of the urethral canal, etc.

The table provides information on the prevailing thickness of the penis in the stronger sex:

Penis diameter in centimetersPercentage of men
Up to two3
2-329
3-459
From 4nine

The average penis thickness varies from 20 to 40 millimeters. This means that the optimal circumference of the reproductive organ is about 7-13 cm. Too thin or, on the contrary, very thick penis, negatively affects the quality of intimate life. As confirmed by numerous polls and studies on what size of penis women like.

After 18 years, the reproductive organ does not grow. If the parameters given by nature do not suit you, the modern world offers many ways to help fix the existing problem.

A quick result is provided by surgical intervention, but it is associated with the risk of complications, the investment of a large amount of financial resources. Alternatively, you can use special devices. a vacuum or water pump, extender. To achieve the desired effect, you will have to spend a lot of time. about 3-7 months.

What is the size of the penis in boys should be 12 years old

Many parents, and adolescents themselves, are interested in what length of the genital organ a boy should have at a certain age. Moms begin to worry, because the child is growing and fully developing, but his masculinity seems to fall out of this process.

At the same time, not a single specialist in the field of medicine will say exactly what size a member should be at 12 years old. The thing is that the sexual development of the body (pubertal) is a purely individual process. No one knows when a child will start it and at what pace it will flow.

What is the normal male size at 12 years old

In boys, sexual development begins at about age 9 and ends at age 17. During this time, the body goes through 3 periods on the way of growing up:

  • from 9-14 years old. Minor changes occur during this time;
  • from 12 to 14 years of age, boys enter the second stage of puberty. The average penis size at 12 years old in a relaxed state is 5–6 cm. During an erection, the penis can increase to 11–12 cm. In this case, the length of the oscillation can be from /. 0.86, and in width from /.0.33. The boundaries of the norm are from 2.92 to 4, 64 in length, and in diameter from 1.59 to 2.25;
  • from 13-16 years old. A period of active growth.

Despite all the averaged data, some parents still do not understand what the normal size of male dignity at 12 years old a boy should have. The average penis size at 12 years old fluctuates a lot. Such a difference within a few centimeters is the boundaries of the healthy development of the genitals in a child. The member grows by an average of 1-1.5 cm annually.

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At the age of 11–12 years, a complex hormonal change takes place in the body of boys. As a result, not only an increase in the genitals occurs, but also secondary sexual characteristics are formed. Increased hair growth begins in the armpit, pubis and face. The growth of the testicles leads to an increase in the volume of the scrotum. The penis becomes slightly longer and thicker, and the foreskin forms on its head.

During puberty, special attention should be paid to the testicles. It depends on them how many cm a member should be at 12 years old. Due to androgen deficiency, the growth of the penis can stop. If by the age of 12 they do not begin to increase, then this is a signal that the child needs to be shown to specialists.

How to measure correctly

  • Measurements are taken in a standing position, in a position comfortable for the boy.
  • The relaxed penis should be in a position in which it will be parallel to the floor.
  • The member should not be pulled or squeezed so as not to damage the organ and cause pain to the child.
  • The organ is measured from the pubis to the tip of the head. To do this, use a ruler or soft measuring tape.

In adolescents, not only the size of the penis changes, but also its bend. In some cases, kinks can occur even before puberty.

However, in most situations, the bend is so subtle that the penis is considered straight in 56% of cases, in 29% of boys the penis bends slightly to the right, and in 13% of adolescents, the bend goes to the left. About 3% of cases were also recorded when the bend of the penis can be more than 20 degrees. relative to the body, and the bend can be directed in any direction.

What do doctors think

If the size of the penis of a 12-year-old teenager differs significantly from the standard, then the following factors are to blame:

  • Insufficient production of the hormone testosterone, which is responsible for the appearance of secondary sexual characteristics.
  • Genetic predisposition.
  • Diseases or injuries of the organ. The impact of such pathologies can delay the development of the penis. Surgery may be required in the future.
  • Wrong lifestyle and bad habits. Early addiction to tobacco or alcohol negatively affects the development of the male reproductive system.
  • Food. Insufficient food of macro and microelements. vitamins and other components does not allow the body to fully develop.

While the child is still small, the responsibility for his harmonious development, including sexual development, falls on the shoulders of the parents. It is on them that the correct physical development of the boy depends, as well as the further sexual and family life of an adult.

Parents should be in a friendly relationship with their sons so that boys do not hesitate to discuss intimate matters with them and ask for advice.

It is necessary to ensure that adolescents do not wear tight or airtight things, observe hygiene, eat well and receive feasible physical activity. As they grow older, the child should monitor their health and lifestyle.

Mom’s opinion

  • Ekaterina, 32 years old. My son just turned 12 years old. I have been following the size of his penis for a long time and I believe that he practically does not grow. The situation is complicated by the fact that I have no one to consult on this topic. I have no husband, and my son flatly refuses to go to the doctor. Also, he no longer wants to take any measurements and, in general, talk about this topic. I read on the Internet that such a small size, about 5 cm, is the average length for this age. Well, time will tell.
  • Daria, 38 years old. My Ivan is a little over 11 years old. The other day he told me that he and his friends were taking measurements of their penis, and his penis turned out to be the smallest! This information upset me very much, so I made an appointment with the urologist. Fortunately, the doctor took all the necessary measurements and reassured me, saying that all the indicators are normal and everything is still ahead of us.
  • Irina, 45 years old. I didn’t think about the size of my child’s penis, and I didn’t know what size of a boy’s penis should be at 12 years old. However, my husband drew my attention to this, saying that the child’s penis was somehow small. Indeed, Cyril is almost 13, but he has imperceptibly no maturity, like his peers. The husband helped his son measure the length, and we checked it against the tables for honey. sites. Everything speaks of the norm, but now I will constantly monitor this issue.

The normal length of the penis is an important indicator of a man’s physical health. Any deviation from the norm can cause deviations of a physiological nature, problems in communication with the opposite sex and low self-esteem. Therefore, the genitals of boys need to be monitored from childhood so as not to doubt that their size corresponds to age.

Paging file. Correct paging file configuration and optimal size.

Hello dear readers! Today we are opening a series of articles about computer optimization on Windows. We’ll start with the swap file. In this article you will find answers to such questions: Where is the paging file ?; How to properly configure the swap file? How to set the optimal paging file size for different amounts of RAM? Go!

Paging file. Terminology.

The paging file (pagefile.sys) is a system file on the hard disk (usually the system disk) of the computer, which serves as a supplement (extension) to the RAM. This extra memory is also referred to as the computer’s virtual memory. Virtual memory is a method of managing the computer’s memory to run programs that require more RAM than the computer actually has. Such programs get the missing RAM from the paging file. In other words, the paging file offloads RAM during periods of heavy load. RAM is several times faster than paging file memory. If you run several applications on the system at the same time that consume a lot of RAM, then the data of unused ones from them will be unloaded from RAM to less fast virtual memory. Active applications will be served directly by random access memory (RAM). Also, if, for example, a minimized application is expanded, then the data from virtual memory will again go into RAM.

How to customize and resize the paging file?

Competent, correct setting of the paging file will significantly speed up your computer. It would be a sin not to take advantage of this. Where can I set it up?

  • For Windows XP: Start Setting up Control Panel System Additionally Speed Options Additionally Edit
  • For Windows 7/8 / Vista: Start Setting up Control Panel System Additional system parameters Speed Options Additionally Virtual memory Edit

If you did everything correctly, you should be in the Virtual Memory window. By default, in Windows 7/8 / 8.1 / 10, the paging file size is determined automatically by the system itself. As you can see in the picture, the paging file can be configured for each partition (and each disk) separately. To set your paging file size, you need:

  • At the very top of the window, uncheck the box Automatically select paging file size.
  • Select the partition (or physical disk) for which the paging file is configured.
  • Check the box next to Specify size. specify the Original size and the Maximum size (specified in megabytes)
  • Be sure to click on the Set button.

To disable the paging file, set the switch to No paging file.

Windows paging file size. Which is correct?

There are different versions of the optimal paging file size. I will express my point of view on this, which is based on my observations and experiments with the swap file on various equipment. It may coincide with the opinions of some IT professionals. I am an adherent of the version that if the computer has 6-8 GB or more of RAM, then the paging file can be disabled altogether. I believe that a large amount of paging file only slows down the computer. Of course, if the amount of RAM is less than 6 GB. it is better to set a certain amount of additional virtual memory, of course. The minimum paging file size must be the same as the maximum. For example: 512-512. 1024-1024. 2048-2048 is correct padding and 512-1024. 1024-2048. incorrect filling. The same indicators of the minimum and maximum size of the paging file, reduce the fragmentation of this file, and therefore speed up the process of reading information from it. Now, depending on the amount of RAM, let’s see what size of the paging file needs to be set. There are the following approximate indicators:

  • optimal paging file size for 512 Mb of RAM. 5012 Mb;
  • optimal paging file size for 1024 Mb of RAM. 4012 Mb;
  • optimal paging file size for 2048 Mb of RAM. 3548 Mb;
  • optimal paging file size for 4096 Mb of RAM. 3024 Mb;
  • optimal paging file size for 8 GB of RAM. 2016 Mb;
  • optimal paging file size for 16 GB of RAM (and more). no swap file.

Of course, this is a subjective view and these indicators cannot be absolutely accurate, recommended, but in practice it was they that gave the effect. You can experiment yourself and find the best combination for your computer. There are some notes here too.

  • Some applications require a swap file. Disabling it can lead to errors in the operation of such applications. If you disable virtual memory on the system disk, it will also become impossible to write a memory dump with BSODs (Blue Screen of Death).
  • If you, as a rule, minimize several applications, leaving them running, and switch to others, then here you may also need a large amount of paging file, since the data of minimized applications is written to it. Although, here it all depends on the amount of RAM.

Correct paging file location. On which disk to include?

If you have several physical disks on your computer, then you need to install the paging file on the fastest disk. It is believed that the swap file is divided into 2 parts:

  • The first part on the system disk (partition) (just for writing debug write information at blue screens of death)
  • The second part on the fastest disc

In this case, the system during operation refers to the least loaded partition, without touching the first. It is also recommended to create a separate partition for the paging file, with the amount of memory equal to or close to the size of the paging file (for example, 2024 MB). This trick allows you to get rid of the fragmentation of this file.

Outcomes:

I hope the tips given in this article will help you properly configure the paging file on your computer and optimize its performance. If you have any questions, write in the comments, I will try to give comprehensive answers to them.