April 13, 2024

Five Star Sport

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How Heavy Is A Baseball? Maybe You Don’t Know!

9 min read
how much does a baseball weigh

In 1876, baseball became a recognized, competitive sport. How much does a baseball weigh is a question that even the most novice baseball fan has pondered.’ at least once. So, for those who prefer the basics, here is the fundamental response: 5-5¼ pounds. A baseball’s size or weight is not standardized, nor is there a set weight. For more information on baseball, read this article.

History Of The Baseball

Baseball has undergone many changes over the years, just like any other game of baseball, reflecting the shifting demands of a sport that has earned the title of America’s favorite pastime. Due to evolving science and technology, even the stitching of a baseball has changed. 

Dead Ball Era

The first rubber-cored balls were created in 1876, the same year the National League was founded. Previously, balls could have different weights because of inconsistent manufacturing practices. 

The first official league ball was created by A.G. Spalding, whose company went on to manufacture balls for a century. 

During the Fall Classic in 1910, a brand-new ball with a cork core was introduced. When the rules were changed in 1920, the ball could no longer be played for the duration of a game unless it unraveled (dirty balls made it difficult for batsmen to see). 

Live Ball Era

1920 turned out to be huge for baseball history. Spitballing was outlawed, and balls were swapped out when they became soft, dirty, or soiled. This was the beginning of the live-ball era. 

Australian wool was introduced by Spalding, who altered the yarn to make it simpler for hitters to hit home runs. This was the era of standard ball manufacturing, and a baseball’s weight was decided upon at three and eight ounces. 

World War Ii Cork Ball

Baseballs weren’t as important as the ammunition required for the war effort during World War II, which reduced the amount of rubber that was readily available. 

Baseballs were then produced using cork rather than leather. 

At this time, baseball was still undergoing changes. In 1944, synthetic rubber was beginning to be mass-produced, and pre-war specifications were once more used to create the balls. 

Contemporary Ball Era

This is the version that is currently being shown at sporting events or on television. A cork and rubber core is inside, and it is covered in black rubber, red rubber, and a yarn outer layer.

More recently, cowhide has taken the place of the traditional horsehide exterior, and MLB balls typically weigh between 142 and 149 grams.


Different Types Of Baseballs

Rubber Baseballs

For instance, baseballs made of rubber were first produced in Japan in the 1950s. It originated as kid-friendly variations that were significantly lighter than authentic MLB baseballs.

For the young people participating in this sport, rubber was regarded as a safe material. While they are uncommon in the United States, rubber baseballs are a common sight in many Japanese sporting events.

Safety Baseballs

This style of baseball, which resembles the Japanese rubber baseball somewhat, is intended especially for young players between the ages of 3 and 5. Thanks to low-cost synthetic materials, they are softer and lighter. These baseballs go well with tiny, light aluminum bats.

Compression Baseballs

Baseballs that are soft are another name for them. These baseballs are 93% softer than typical hard baseballs, statistically speaking. They are frequently suggested for young and inexperienced players.

Seniors who play baseball recreationally also choose these. Synthetic leather, not cowhide, is used to cover compression baseballs. These baseballs are lighter than the typical hard baseballs, which goes hand in hand with their softness.

Reduced Injury Baseballs

These baseballs were made with user safety in mind, as suggested by the name. It has a poly-mixture core with various index levels for correlating age ranges. The name of this index is SEV, which stands for severity.

The levels are, in brief: tee, level one, level five, and level ten, based on the impact force of the baseball on the body. Most practices and casual games use these baseballs.

Little League Baseballs

The little league baseball weighs between 113 grams and 141 grams to accommodate younger players between the ages of 8 and 14. Their cork is more cushioned and loosely wrapped.

Though they work just as hard and up to the same standards as the 264 or so teams that make up Minor League Baseball, they do so. However, in 2019, MLB players at the higher level of Triple-A also began using heavier MLB game balls.

How Heavy Is A Baseball?


Major League Baseball’s (MLB) official game ball can weigh anywhere between 142 and 149 grams.

The material of the modern baseball, which is a composite of cork and rubber with an outer layer of black rubber, contributes to its weight. Then, on top of that, is a red rubber shell that is ultimately covered in yarn.

Each MLB ball is strictly weighed during the manufacturing process in order to maintain fairness and integrity in all games. However, it is impossible for all baseballs to have the same weight due to variations in raw materials and other outside factors. Instead, there is a weight range of 142 to 149 grams.

Why Does The Weight Regulation Have Such Variability?

There are many theories about this issue, but since baseballs are all hand-stitched, MLB had to allow a slight cushion for the weight in order to make the balls more economical during production. Every MLB baseball is still manufactured by Rawlings.

Weights Of Various Sports Balls:

  • Baseball 5-5.25 Ounces 142 Grams
  • Softball 6.25-7 Ounces 177 Grams
  • Cricket 5.5-5.75 Ounces 156 Grams
  • Golfball 1.62 Ounces 46 Grams
  • Pool Ball 5.5-6 Ounces 156 Ounces
  • Pickelball 0.8 Ounces 23 Grams
  • Croquet Ball 16 Ounces 453 Grams
  • Table Tennis 0.1 Ounces 2.83 Grams

What Materials Are Used To Make Baseballs?

Core (Pill)

Depending on the type of ball, the center of the baseball, known as the core or pill, can be made of various materials. Cork, rubber, and some combination of the two are still the most frequently used materials.

There are two different types of cores, depending on the substance and the manufacturing procedure: cork and rubber and cushioned cork.

The black Cork and Rubber Pill are made of cork and rubber, as its name implies. The orange or red color of the top layer makes cushioned cork core easy to identify. In the center is the small ball-shaped piece of cork,

Two black rubber shells surround the cork, and a red or orange rubber gasket seals the package. The cushioned cork core is typically found in balls used at the professional or minor league levels of baseball.


Thick windings, or layers of wool yarn, encircle the pill. Around the cork are four layers of windings, each with a different thickness. Due to wool’s flexibility and resilience, the three inner windings are frequently made of this material.

For added strength and better tear resistance, the fourth and final layer is constructed of a poly-cotton blend. Cheaper wool or composite material is frequently used to replace windings entirely in baseballs of lower quality.


Baseball covers come in two different varieties. While the exterior of the second is made of synthetic leather, the exterior of the first is genuine leather. Almost always, the balls used in official games have genuine leather covers made of cowhide.

Most often used for practice, are the balls with synthetic leather coverings. This is so because genuine leather is better for grip and much more resilient.

The cost is higher as well, though. Additionally, the thickness of genuine leather can differ, which is another factor contributing to the slight weight variation of baseballs.

Different vinyl and vinyl-like materials are frequently used in synthetic leather covers. These balls won’t last for very long, but they have one advantage over genuine leather ones: they don’t absorb water as quickly.


Stitching the two covering components together completes the baseball’s manufacturing process. The waxed red thread is used for this, and there are 108 stitches total holding the cover together.

Seams or stitching can be rolled, raised, or flat. Younger players typically use balls with raised seams because they enable better control and are simpler to handle.

The rolled seam that professionals use reduces air friction and speeds up the ball’s flight. Batting practice frequently involves the use of flat seams.

how much does a baseball weigh

How Are Baseballs Made?

The materials are all wound up in order to give the ball the right weight. A baseball is made in the following manner:

  1. Wrapped in rubber are the rubber and cork core: the first layer is black rubber and the second layer is red rubber.
  2. Once the yarn has reached the rubber casing, a rotating machine is used to wrap the ball in the yarn.
    • To prevent yarn from expanding and changing the ball radius, the machine is in a controlled environment.
  3. Three separate portions of the yarn are wrapped. Prior to the 45 yards of white wool and the 150 yards of fine white cotton or wool, there are 121 yards of gray wool.
  4. To secure cowhide to yarn, use rubber cement. The ball is accurately weighed by rubber cement.
    • Cowhide is tanned in order to achieve its white color.

All professional balls have double stitches that are manually sewn.


What Is A Baseball’s Typical Lifespan?

A team is required to supply 90 brand-new baseballs before the game. Although, as was already mentioned, this can go up to 120 balls, 60 to 70 balls are typically used. Six pitches are used on average when an MLB baseball is used, so these numbers usually make sense.

In Kilograms, How Much Does A Baseball Weigh?

It may range from 142 to 149 g. 149 g is the weight of a ball in the major league and national league. For all you enthusiasts, the precise weight is 148.83 grams.

How Much Does A Little League Baseball Weigh?

A baseball used for children in the age range of 8 and 9 weighs 4.3 oz, compared to the typical adult baseball’s weight of around 5 oz. The lighter ball will increase safety and account for the strength of the younger pitchers. For younger children, a Baden Level-5 Safety Baseball may be used; it has a poly center to make it feel lighter. Then, a ball like the Rawlings Ripken Baseball can be used for second grade. It weighs 4.19 lbs.

An MLB Ball’s Weight Is Unknown.

The weight of an MLB baseball is between 5 and 5.25 oz. They are made of rubber and cork at the corn, wound in yarn to keep it compact, and are designed to be consistent. The cover is made of white leather and is firmly fastened together. 

Machine-made balls are intended to weigh 5 oz, but there is some room for error because they can weigh a little bit more. Each baseball is stitched 108 times. The first and last are stitched by hand and are concealed. There’s a lot of sewing going on there!

How Much Does A Weighted Baseball Weigh?

Weighted baseballs are used to increase arm strength, enhance batman hitting, and improve agility and speed. This means that on game day, hitters can drive harder and possibly even with a higher exit velocity. 

Depending on whether the hitter or pitcher is preferred, they weigh differently. Weighted baseballs can range in weight from 6 oz, which is slightly heavier than a regular baseball, up to 12 oz. 

However, they aren’t just advantageous to the hitter. It is not surprising that pitchers also use weighted baseballs because they have been shown to improve throwing accuracy, stability, and speed while also reducing injury rates. 


You have now read the last sentence of this article on the weight of a baseball. An MLB baseball weighs between 142 grams and 149 grams.

The weight of a baseball may not seem like it would matter much, but it has a big effect on the game. The weight of the baseballs played a significant role in the differences in how the game was played throughout history.

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