Adults use a size 5 soccer ball.
Women's soccer is in a different league to the men's soccer. Women use a soccer ball that is the same size as the men's soccer ball.
Size 5 soccer balls, used for international and league matches is 69-71 cm in circumference.
they use 6 inch balls
It depends how old you are but for professional players (example: MLS) it's a size 5
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.
This would be determined by the league and not consistent across different leagues.
The size of the regulation soccer ball used by adults and teenagers is the Size "5" Ball. It is the official size of ball used by FIFA.
Many types of balls are used in professional soccer, but they all have the standard size and weight and are round. Generally, it depends on the sponsor. For example, in the EPL, the Nike Total 90 ball is currently being used.
It is two times the size of a soccer ball.
Depends what size the ball is.