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You are watching: Diameter of a ping pong ball

Most civilization can snapshot ping pong balls in their heads, however they tend to evaluate the size and also the weight of the ball. In our unique "How huge is a Ping Pong round Guide", we"ll answer every one of your questions about size, weight, and also dimensions.


I found these fun facts to it is in pretty exciting and also I"m passionate to re-superstructure them with you, therefore let"s get started...

How large Is a Ping Pong Ball?

Ping pong balls are rather small. This perfectly spherical balls room made especially for use playing ping pong. They have a diameter the 4 cm or 1.57” and also only sweet 2.7 g, or .095 ounces. The main ping pong ball used to it is in a bit smaller, at simply 3.8 cm, or 1.5”.

They have a 12.56 m, or 4.94” circumference. Generally, however, civilization talk about ping pong balls in regards to their diameter, no their circumference.

While they nothing vary lot in size, ping pong balls deserve to vary in color. Orange balls are good for casual games due to the fact that they are so simple to spot, if white balls are main tournament balls. This is because they pair for this reason well through either green or blue tables and are simple to see.

Which Is bigger – A Ping Pong round or a Golf Ball?

It have the right to be an overwhelming at an initial glance come tell if a golf round or a ping pong sphere is bigger, however once you measure up the balls, climate you can conveniently see the tiny difference. Ping pong balls increased in dimension after the Olympic gamings in 2000, however are quiet rather small at just 4 centimeter in diameter. This rise in size did bring them lot closer to the dimension of golf balls, but they room still a little bit smaller.


Golf balls, ~ above the various other hand, are 4.267 centimeter in diameter, or 1.6”. These minimum sizes raised from 1.62” in 1990.

While friend may have actually trouble telling which ball is bigger simply by looking in ~ them, most civilization can easily tell i beg your pardon one is heavier as soon as they choose them up. Golf balls sweet significantly an ext than ping pong balls do, i m sorry is as result of their design and also construction so that they will conveniently soar through the air as soon as hit.

Are There different Sizes of Ping Pong Balls?

Ping pong balls room generally available in 2 sizes – 3.8 cm and also 4 cm. The 3.8 cm balls are the old balls, while the 4 centimeter balls room the ones that are right now the recommended size. This method that if you room going to be setup up a local tournament or desire to exercise for a real main tournament, then you need to make certain that you usage the best size balls. If you perform not, climate you might struggle during the real game.

Another thing to consider when shopping because that ping pong balls, in addition to the size that girlfriend choose, is their quality. No all balls space made the same, and not all have actually the exact same purpose, which way that you need to have the ability to choose the best one because that your demands if you desire to have luck behind the table.

Fun, or novelty, balls room designed in lots of various colors and may also come in various sizes. They space geared towards youngsters who desire to pat ping pong and need a small extra inspiration to gain the sport. While castle look funny on the table, they regularly vary in size and can it is in either hard or soft, make it complicated for more committed ping pong players to uncover the right balls for your needs.


Training, or practice, balls are another type of ping pong ball accessible on the market. They have tendency to be softer and are generally the standard 4 cm, although the is feasible to find them in the 3.8 cm size. Unfortunately, they room not an extremely durable and also can quickly break if they are hit too hard.

One-star balls are good for youth or usage at schools. When they are still a tiny softer 보다 higher-quality balls, they room fun and also easy to play with. Castle can variety in colors and sizes, but most regularly are accessible in 4 cm sizes.

Two-star balls are an excellent for practice, use v a robot, or by intermediate players. They are not the highest possible quality round on the market, yet they can conveniently be used in a pinch if necessary. As lengthy as they are the correct weight and are 4 cm in diameter, climate they deserve to be used for tournaments.

Finally, the best ping pong balls ~ above the sector are three-star balls. They have been authorized for use by the global Table Tennis Federation and also are the perfect an option for experts and much more serious players. Ping pong football player are typically safe to i think that any kind of three-star round they buy will be the correct dimension for play.

How hefty Is a Ping Pong Ball?

To it is in authorized for use in competition play, ping pong balls should be 2.7 g in weight. Any type of heavier than this and the players will have to hit the ball lot harder to gain it end the net. Balls that are any kind of lighter will certainly be incredibly daunting to hit and to control, do the game harder than it requirements to be.

Are Ping Pong Balls Hollow?

Ping pong balls are completely hollow on the inside, which is why they are so light. They space made from celluloid that has actually been extracted from cotton cellulose, and also plastic. While there has actually long to be a rumor the ping pong balls space filled through camphor, the fact is that they are not, and they only have actually air ~ above the inside.

Ping pong balls go through an interesting production to become their perfect spherical and also hollow shape. There are huge and flat sheets the celluloid that room soaked, totally submerged, in hot alcohol until they space soft. When they are soft and pliable, then they space pressed into half-spheres. This hemispherical forms are trimmed and enabled to harden completely. As soon as this occurs, then two forms are joined in addition to an alcohol-based glue.

Once the 2 halves have actually been joined together, then the ping pong ball is placed into a maker where the edges will certainly be smoothed down and also the surface ar will it is in smoothed, as well. Finally, the ping pong ball will it is in stamped and then packaged.

At no time throughout the procedure are any strange gases inserted into the ping pong ball. This interesting procedure results in a perfect hollow and also spherical round every single time.

How numerous Ping Pong Balls deserve to Fit in a swim Pool?


How countless Ping Pong Balls can Fit in a school Bus?

While this might seem prefer a strange question to ask, it’s in reality a well-known interview inquiry that prospective employers love come ask throughout interviews. This is since it needs a many of comprehensive thinking and also reasoning by the person trying to settle the problem. Standard institution buses are about 8’ by 6’ by 20’. Based upon the dimension of a ping pong ball, and also how much volume is easily accessible to to fill in one empty school bus, there will usually be roughly 1,095,529 balls inside of the bus to fill it up.


As you can see, you would have to have a shocking amount of ping pong balls to to fill up a standard school bus. Most people are surprised by how plenty of balls castle would need for this task, as it deserve to be difficult to also imagine having that countless balls.

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A lot an ext goes right into choosing an excellent ping pong balls than simply buying the very first package the you watch at a store. That incredibly vital to make sure that friend are constantly aware the the size and quality the ping pong round that girlfriend are searching for so the you have the right to be sure you make the right selection for your needs. Skimping by to buy low-quality balls or ones that aren’t the authorized 4 cm size will an outcome in girlfriend having problems with her games and not being all set for real tournament play.