Size 4 balls are generally used for players between the ages of 8 and 12; they weigh between 12-13 ounces and have a circumference of 25- 26 inches. The details on the ball for adult soccer (Size 5) are in Law 2 of the Laws of the Game. The composition and air pressure figures given in Law 2 apply to all the sizes.
Normal atmospheric pressure is 14.7psi. For example: A soccer ball has a recommended pressure of 0.6 BAR labeled on it. To convert to psi pressure, multiply the BAR pressure by 15.5. The answer is 8.7 psi, which is at the bottom end of the range of correct pressures for a soccer ball.
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The circumference of a size 3 soccer ball is 23 to 24 inches. Size 4 soccer balls are 25 to 26 inches in circumference. The size used in professional soccer and upper level youth leagues is size 5 which is 27 to 28 inches. The smaller size 2 soccer balls are promotional soccer balls.
SIZE 4. A size 4 soccer ball is used primarily by youth players in the 8-12 age range. The dimensions of a size 4 ball are 25″-26″ in circumference and 350-390 grams in weight. This decrease in size is beneficial for this age group as it allows players to get accustomed to their skill set. For example, players of this age might find ...
A regulation ball of size 5 must have an air pressure of between 8.5 and 15.6 PSI (pounds per square inch). (For those of you who don’t know, a regulation ball is one that has been granted a certification by FIFA for use in official matches.) The majority of footballs, however, have an air pressure value of 8.7 to 11.6 PSI.
Even the newest soccer ball will lose some air pressure after a while. Youth Soccer. In youth soccer leagues, the size of the ball is a little smaller than the regulation soccer ball, to account for smaller players. Although a FIFA-regulated ball is usually 26 to 27 inches in diameter, a youth ball is typically 23 to 24 inches in diameter for ...
Size 4 balls are used for players between the ages of 8 and 11 (U-8, U-9, U-10 and U-11). Size 4 balls are also used by adult players in futsal and indoor football (note that the ball material are different for these balls). Size 4 balls are also often used for recreational soccer/football by adults in smaller fields. Ball Size 3: Circumference:
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