Few know that soccer balls can vary greatly in diameter. But this is one of the important parameters on which the purpose of the ball will depend. Before you go to the store, you should find out what are the sizes of soccer balls.
History
For centuries, balls have been man's favorite toy. They rolled to us from ancient times.
Some nations treated the ball with special respect. For example, the ancient Greeks considered it an ideal object, since it resembled the sun in shape, and, therefore, had magical powers.
When excavating the tombs of the Egyptian pharaohs, it turned out that the ball was not only depicted on the walls, but also was present in the graves.
Revered ball and the Indians of North America. They personified him with the moon and the sun. This item of perfect form was sacred to them.
Balls were made from everything that was around: from the bark of trees, reed, skin and even hair. Inside was also a natural material: moss, bird feathers, grain, round fruits. And the Roman legionnaires, along with the ancient Chinese, made balls from the severed heads of their enemies.
Later, the ball began to be inflated. The first rubber ball was brought to Europe from Central America by the famous Columbus.
Since then, to this day, the whole civilized world has been familiar with the ball.
How to determine the diameter of a soccer ball
The fact is that when describing the size of the balls, the circumference, rather than the diameter of the ball, is usually taken into account. However, a school geometry course can tell you how to find the diameter of a soccer ball, knowing its circumference.
To do this, the circumference must be divided by the number Pi, i.e. approximately 3.14. Practice shows that the actual measurements of the diameter of a soccer ball and the calculated ones coincide.
So, the circumference of the balls according to the rules of FIFA should be 68.57 centimeters, and the diameter of 21.8 centimeters as measured. If we calculate the diameter of the ball with a circumference of 68.57 cm, we get 21.8 cm.
There are many interesting logical puzzles on the Internet with the question of what is the diameter of a soccer ball. For example, puzzle lovers are invited to determine the diameter of the ball, having only a wooden ruler in their arsenal.
Soccer ball dimensions
Many will agree that football is one of the most popular sports in the world. In addition, this sport has received national recognition for the fact that everyone can play it. In any clothes and almost anywhere. Of the required inventory - only the ball.
But those who want to seriously engage in football should know what the circumference, weight and diameter of a soccer ball should be in cm.
To date, soccer balls are divided into five sizes. But you can also highlight and zero size. Officially, such balls are not included in the classification, because they are souvenir.
Its circumference does not exceed forty centimeters. These include quite miniature options that do not exceed the size of the keyring.
Size No. 1
These balls, like the “nulls,” are souvenir and do not exceed 43 cm in circumference. But they make them exactly the same as playing balls of classic sizes. In fact, this is a full-fledged ball, just miniature. They are produced, as a rule, from synthetic materials.
Such balls are used as advertising and souvenir, they are applied various drawings, inscriptions and logos. Their diameter does not exceed 13.69 centimeters.
Size No. 2
The circumference of such a ball is from 43 to 56 centimeters. The diameter does not exceed 16.47 cm, and the mass is 283.5 grams. These balls can also be used as promotional. They put logos, signatures of football players, as well as advertising slogans.
But such balls can also be used for their intended purpose. They are used in training and games of young children. Also, “deuce” can be an assistant in honing the skills of possession of the ball.
Size No. 3
These balls are used when training children under eight years old. Their mass should not be more than 340 grams. The diameter does not exceed 19.42 cm, and the circumference is 61 centimeters. Sometimes "triples" are sewn from 26 or 18 panels, but more often all the same from 32. They are made of synthetic materials and PVC.
Lightweight balls weighing up to 290 grams are often referred to the same category. They can be used by women and children.
Size No. 4
These are standard futsal balls. In big football, they are used to train children under fourteen. This ball is made from natural materials such as leather. Weight can range from 369 to 425 grams.
The circumference of the ball of the fourth size is 63.5-66 centimeters. The diameter is in the range of 20.2 to 21 centimeters.
Size No. 5
It is these balls that are used in big football, including in FIFA matches. They are used in training of young football players over 12 years old, as well as in all adult competitions.
The diameter of a soccer ball of size 5 is in the range of 21.6-22.3 cm, and the circumference slightly varies from 68 to 70 cm. The weight of the "five" should not exceed 450 grams.
Along with these sizes, lightweight balls are also used. They can target women and children. With the above diameter and circumference, the mass of such a ball will be less than officially adopted.