How Much Does a Baseball Weigh?

(Last Updated On: January 30, 2023)

This article is for those who are just starting to get into baseball. We’ll start by asking the question “How much does a baseball weigh?”. From there, we will branch out to other relevant information, such as the evolution of baseball sizes and weights and the differences among types of baseballs.

The official MLB baseball weight ranges from 142 to 149 grams. This weight is paired with a circumference between 229 and 235 millimeters, and a diameter between 73 millimeters and 76 millimeters for proper proportionality.

How Much Does a Baseball Weigh?

Major League Baseball (MLB) can use a ball weighing anywhere from 142 to 149 grams.

The modern baseball’s material, which is a mix of rubber and cork with a black rubber exterior layer, partly determines its weight. The outer layer of rubber is covered with a red rubber shell, which is then finally covered by yarn.

To ensure fairness and integrity in all MLB games, each baseball used is carefully monitored throughout manufacturing. The baseballs cannot all be the same weight due to differences in raw materials or other factors. Instead, the weight range is between 142 and 149 grams.

Different types of baseballs

There are many other types of baseballs, however, beyond the MLB. Each one has its purpose and construction. They also come in a variety of weights. They are all lighter than the MLB standard baseball.

1 Ordinary MLB

Ordinary MLB Baseball

This ball is used for Major League Baseball (MLB). Rawlings, a Missouri sporting goods company that specializes in baseball equipment and apparel, makes this official ball.

This ordinary baseball is used in Japan’s high school baseball games. It is also known as a “hardball” in Japan.

2. Rubber baseballs

Rubber baseballs

Rubber baseballs are an example of this. They were made in Japan in the 1950s. These were lighter than the official MLB baseballs and were made for children.

For youths who were involved in this sport, rubber was considered safe. Although rubber baseballs aren’t very common in the United States of America, they are ubiquitous at many Japanese sporting events.

3. Safety Baseballs

Safety Baseballs

This type of baseball is similar to the Japanese rubber ball, but it’s specifically made for children aged 3-5 years. These baseballs are made from inexpensive synthetic materials and are lighter and more comfortable. These baseballs can be paired with small lightweight aluminium bats.

4. Compression Baseballs

These baseballs are also known as softballs. These baseballs are statistically 93% softer than traditional hard baseballs. These baseballs are highly recommended for junior and rookie players.

They are also used by older people who play baseball recreationally. These compression baseballs are made from synthetic leather, not cowhide. These baseballs are more lightweight than standard hard baseballs.

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5. Reduced Injury Baseballs

These baseballs, as the name suggests, were designed to ensure user safety. It has a poly-mixture base with different index levels to suit different ages. This index is called “SEV”, which stands for severity.

The impact force of the ball on the body determines the level. These baseballs are mostly used in practice and friendly matches.

6. Little League Baseball

Little league baseball is designed to cater to players aged 8-14 years old. It weighs from 113 to 141 grams. They are more cushioned, and their cork is wrapped loosely.

They are still very hardy and meet the requirements of the Minor League Baseball participants (which are about 264 teams). In 2019, however, MILB players at the Triple-A level switched to heavier MLB game balls.

7. Softball Baseball

Softball Baseball

Further, Many compression baseballs are made of polyurethane material. This makes them more comfortable than traditional ones. The level of softness can vary. These balls are larger and heavier than regular baseballs in terms of dimensions.

These balls can also be used for battling or field practice. These balls are soft enough to be used indoors by players.

Softballs measure 3.82 inches (9.7 cm) in diameter and 12 in (30.5 cm) in circumference. Its weight ranges from 6.25 ounces (173 grams) to 7.25 ounces (191 grams).

What is the reason for such a variance in weight regulation?

Although there are many theories on this topic, MLB decided to allow some cushioning for the weight of the baseballs to make them more economical to manufacture.

Rawlings produces all MLB baseballs.

Different Sports Balls: Weights

Baseball 5-5.25 Ounces, 142 Grams

Softball 6.25-7 Ounces, 177 Grams

Cricket 5.5-5.75 Ounces, 156 Grams

Golf ball 1.62 Ounces 46 Grams

Pool Ball 5.5-6 Ounces, 156 Ounces

Pickel ball 0.8 Ounces 23g

Croquet Ball 16 Ounces 453 Grams

Table Tennis 0.1 Ounces 2.83 Grams

Conclusion: How Much Does a Baseball Weigh?

This concludes our article about how much a baseball weigh. The weight of an MLB baseball ranges from 142 to 149 grams.

There were however many weights that existed in the past, corresponding to different eras, such as the Dead Ball era and the Live Ball era. There are many baseball variations today, each with a different weight to suit a particular user or purpose.

Please feel free to leave any comments or questions regarding this topic. We love to hear from readers. Feel free to share the article with others.

Frequently Asked Question

1. How much does a baseball weigh in Kilograms?

A baseball weighs between 140 and 150 grams. It can weigh between 140-150 grams and 0.14 to 0.15 kilograms. They are almost always used in official league matches.

I measured my average weight and came up with 0.147kg (approximate).

What is the weight of a baseball in grams?

Major league baseball is currently weighed between 5 and 5+1/4 ounces (142 and 149g) and measures 9 to 9+1/4 inches (2229-235mm), or 2+7/8-3in (73-76mm).

Are MLB baseballs lighter?

Wills discovered that Rawlings has been producing both lighter and heavier baseballs since late 2019. The lighter ball was manufactured from Oct. 2019 through Jan. 2020 and the heavier ball, Jan. 2020.

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