How Many Mm Is A Ping Pong Ball

How Many Mm Is A Ping Pong Ball

Last modified: October 3, 2023


When it comes to the game of ping pong, or table tennis, there are many elements that contribute to its exciting and competitive nature. One of these elements is the ping pong ball itself, which is an essential part of the game. Ping pong balls come in various sizes, and in this article, we will explore the specific dimensions of a ping pong ball and answer the question: how many millimeters is a ping pong ball?

The Dimensions of a Ping Pong Ball

A standard ping pong ball is 40 millimeters in diameter. This measurement is in line with the regulations set by the International Table Tennis Federation (ITTF), the governing body of the sport. The ITTF stipulates that a ping pong ball must have a diameter of 40 millimeters (+/- 0.5 millimeters) and weigh around 2.7 grams (+/- 0.1 grams).

Material and Construction

Ping pong balls are typically made from a type of celluloid or similar plastic material. This lightweight material allows the ball to have the desired properties, such as bounce and spin, when it interacts with the table and the paddles. The construction of the ping pong ball is also designed to ensure consistency and durability, as well as to meet the ITTF regulations.

Color Options

While the most common color for ping pong balls is white, they can also be found in other colors. In competitive play, white ping pong balls are typically used, as they provide good visibility and contrast against the table and the players’ attire. However, for recreational purposes or themed events, you may come across ping pong balls in various colors such as orange, yellow, or even novelty designs.

Alternative Sizes

While the standard size for ping pong balls is 40 millimeters, it’s important to note that there are alternative sizes available as well. For instance, there are larger ping pong balls with a diameter of 44 millimeters, which are commonly used in some Asian countries. These larger balls are known as “Asian” or “Chinese-style” ping pong balls. Additionally, there are smaller ping pong balls with a diameter of 38 millimeters, often referred to as “mini” ping pong balls.


So, to answer the question of how many millimeters is a ping pong ball, a standard ping pong ball has a diameter of 40 millimeters. This measurement is important for ensuring fair and consistent gameplay in table tennis. The size, material, and construction of the ping pong ball all contribute to its performance on the table and its ability to provide an enjoyable playing experience. Whether you’re a casual player or a competitive athlete, understanding the dimensions of a ping pong ball is key to mastering the game.

Additional Ping-Pong Resources:
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