Baseball Size report

Baseball appearanceBaseball is one of the most popular sports in the world. You might already know that there are two opposing teams with nine members each; each team takes turns to defense and offense in the bat-and-ball game. As baseball is the center of this game, do you ever wonder how big is a baseball?

A baseball is the ball used to play in baseball games and is easily recognizable by its signature red stitching; it has a sphere form and a rubber or cork center wrapped in yarn. A baseball is small enough to be comfortably gripped with one hand. MLB regulates the appearance of baseball.

Today's modern baseball is as recognizable with its signature white surface and figure-eight stitching. After reading the following article, you will find out the exact answer and more about baseball types and sizes.

Baseball Size Basics

It might just seem like a regular baseball, but the details encapsulated in those 108 stitches mean a lot to the athletes throwing, catching, and hitting it. From the interior makeup to the exterior casing, each piece of the ball serves a purpose. Although most baseballs look and feel exactly alike, there are significant differences between them to warrant a closer look. Baseballs of different types and uses have subtle differences in size and structure.

Official MLB Baseball

The different types of Baseballs are hard baseball, rubber baseball, and soft baseball. In Japan, hard baseball is commonly used in high school baseball games.

  • Hard baseball: It is the standard ball regulated for MLB games.
  • Rubber baseball: A rubber ball is also a Japanese-style baseball game. There are now two sizes; type M ball (major) measures 2.81 inches (7.15 cm) – 2.85 inches (7.25 cm) in diameter; Type J ball (junior) measures 2.7 inches (6.85 cm) – 2.74 inches (6.95 cm).
  • Soft baseball: Its softness might vary, which is rated by levels. Regarding the dimensions, soft baseballs are bigger and heavier than ordinary baseballs. These soft baseballs are produced for fielding practice or battling fielding. They are also soft enough for players to practice indoors.

Baseball Size Chart

An official MLB baseball measures 9 inches (22.9 cm) – 9.25 inches (23.5 cm) in circumference. Also, baseball diameter measures approximately 2.86 inches (7.3 cm) – 2.94 inches (7.5 cm). Thus, the baseball radius would be around 1.437 inches (3.65 cm). A standard baseball weighs approximately 5 ounces (142 grams) – 5.25 ounces (149 grams).

A softball measures 3.82 inches (9.7 cm) in diameter and 12 inches (30.5 cm) in circumference. Besides, its weight varies from 6.25 ounces (177 grams) to 7 ounces (198 grams).

Baseball TypeCircumferenceDiameterWeight
Hard Baseball 9"-9.25" (22.9-23.5cm)
2.86"-2.94" (7.3-7.5 cm)5-5.25 oz. (142-149g)
Rubber Baseball2.81"-2.85"(7.15-7.25 cm), 2.7"-2.74"(6.85-6.95 cm)
Soft Baseball3.82"-12" (9.7-30.5 cm)
6.25-7 oz. (177-198g)
Standard Baseball Size
https://www.dimensions.com/element/baseball

The Baseball Bare Minimum

At a minimum, a baseball needs to be 9 inches in circumference. It means that the smallest allowable ball will have a diameter of 2.86 inches and a radius of 1.43 inches. It makes the minimum surface area 25.78 square inches and the minimum volume 12.32 cubic inches.

The Baseball Max Dimensions

At most, a baseball can have a circumference of 9.25 inches. It affects all the dimensions of the ball. It makes the maximum diameter 2.94 inches and the maximum radius 1.47 inches. The maximum allowable surface area is 27.24 square inches, and the maximum volume is 13.37 cubic inches.

The Baseball Weight

Baseballs also have a set weight range. The minimum weight for a baseball is 5 ounces. A baseball can weigh as much as 5.25 ounces on the high end. But the slight difference is too small to be noticeable without measuring.

Baseball size does matter. Buying hard baseballs intended for older kids may cause unnecessary pain. It means stinging hands when batting a ball in the wrong spot), driving kids to lose interest. We highly recommend consulting your professional baseball coach before purchasing, and they must have recommendation baseball brands.


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