How big is a baseball in cm?

In Major League Baseball (MLB), the official baseball used in games has a circumference of 9 inches (22.86 cm) and a weight of 5 ounces (142 grams). The size and weight of the baseball are carefully regulated by MLB to ensure consistency and fairness in the game.

The baseball is typically made of cork at its center and wrapped in layers of yarn, rubber, and leather. The leather cover of the ball is hand-stitched and has 108 double stitches, which are precisely spaced and have specific tension requirements.

Overall, the size of a baseball is an important part of the game, as it affects the way the ball travels through the air and how it behaves when it is hit, thrown, or caught. The size and weight of the ball are also factors in the health and safety of the players, as they can affect the strain and stress placed on the arm and other parts of the body during play.