What is the Diameter of a Golf Ball?

In my opinion, golf is one of the most underrated sports in the world. In spite of the fact that it does not have the same massive following as football, baseball, soccer, and basketball, it is just as enjoyable to watch and play as those sports.

Due to its lack of popularity, it is likely that many are unaware of both the right techniques and the game rules. The game is more than just a swing, it is also about the game rules.

A golf ball is also an important tool in learning. In light of this, many people are wondering – What is the Diameter of a Golf Ball?

This guide will cover more than just the diameter of a golf ball. You’ll also learn some interesting facts about golf balls that you might not have known yet, as well as some other sizing information.

what is the diameter of a golf ball
If you are asking this question, you are not crazy. It is probably just curiosity, and we won’t judge you.
People who are curious, and open to learning new things, are always in demand. It is important to know that the diameter of a golf ball is 1.68 inches or 42.67 millimeters. That is the rule set by the United States Golf Association.

To make sure that the ball passes golf ball regulations, you do not need to manually measure it. This is already known by the manufacturers. The size of a golf ball can be determined by the manufacturer as long as they are a reputable company.

However, do not be surprised if you see golf balls with a diameter smaller than 1.68 inches. This is not a counterfeit product. More than likely, they are old. They were manufactured before the 1980s when golf balls were required to have a diameter of at least 1.62 inches.

In your hand, you can’t tell the difference between a new and an old golf ball. Only a tape measure will tell you for sure.

What is the Diameter of a Golf Ball?

Why is The Diameter Standard?

Like other sports, golf has to follow a specific set of rules. To adhere to these rules, the golf ball should follow the regular size.

This is important to make sure that it will fit in the hole. More so, this size is standard so that it is easy to hit using the different clubs that you have in your bag during a round of golf.

golf ball diameter

The European Difference

The R&A regulates golf in Europe, not the USGA. They used to use golf balls with a diameter of 1.62 inches.

North America is windier and chillier than Europe. Golf balls designed for these environments may be smaller than golf balls used in the United States and most other countries, since the length of a shot may decrease.

In Europe, it is noticeable for players such as Jack Nicklaus and Arnold Palmer who played at the Open Championship, that the .06 difference in performance may not seem much, but for professional players, it can make a big difference.

A standard golf ball size of 1.68 inches was achieved by the R&A and USGA in the 1990s.

diameter of a golf ball

Other Things To Know About Golf Ball Size

We’ll also discuss the other dimensions of golf balls. In this section, we will talk about some of the most important numbers you should know about the dimensions of a golf ball.

The Radius Of The Golf Ball

The radius of a golf ball is .83 inches. In fact, the radius is just half of the diameter of the golf ball, so it can be easily calculated by dividing the diameter in half.

radius of a golf ball

Circumference Of A Golf Ball

A golf ball measures approximately 13.405 centimeters in circumference or 5.277 inches. Manufacturers of golf balls must adhere to this rule to ensure that their balls fit the hole.

golf ball size

Weight Of A Golf Ball

Another important technical specification is the weight of the golf ball because it impacts the outcome of every shot.

When a ball is too light, it can easily be swayed by the wind, and external factors may affect its travel. When it is too heavy, you will have to exert more effort in your shots, and the ball may not travel the distance you expected.

Casual users typically use golf balls that weigh 45.93 grams, which is between light and heavy. Variations can affect the ball’s performance, including its trajectory and distance. It is important to remember, however, that for tournament games, the USGA requires a golf ball to weigh exactly 46 grams.

weight of golf balls

Dimples Of A Golf Ball

Golf balls are famous for their dimples, which are one of their best features. Their purpose goes beyond being an aesthetic feature. The presence of these particles has an impact on the overall performance of the golf ball on a scientific level.

When an object is flat, it travels unevenly through the air. The object will fluctuate and will be difficult to control. A dimpled surface is the best solution. By cutting drag, they will allow air to flow in a larger area of the golf ball. It will also affect the golf ball’s spin and lift.

The average golf ball dimple has a depth of .01 inches. Differing models have different circumferences, though. A golf ball’s dimples do not have to be a particular size.

how big is a golf ball

Golf Ball Construction

Let’s talk a bit about the construction of the ball golfers use while we discuss the size. The construction of the ball has a significant effect on its weight and size. Consequently, the ball’s performance is affected by its construction.

You will have a two-piece golf ball at the most basic level. The outer shell and the core are separate pieces. Cores are denser than outer shells. The outer shell and the core are separate pieces.

If you want a ball that feels better, then choose one that is three-piece constructed. Because it has more spin, it is quite difficult to control the ball’s movement.

Meanwhile, the multi-layer golf ball is the best choice for professionals. Of course, it is the most expensive as well. The core is exceptionally dense, and the cover is thin.

golf ball dimensions

Penalty For Using Golf Ball With The Wrong Size

In golf, you probably don’t obsess over the normal ball size if you play recreationally. If the size fits in the hole, you can use whatever size you are most comfortable with. When it comes to tournaments, however, different rules apply. Because the rules are quite strict, you must follow the recommendations for the size of the ball. In the event that you do not use the right golf ball or other equipment that does not meet the tournament’s standards, you may be disqualified. There is a maximum of four penalty strokes for every hole as well as a two-stroke penalty per hole.


The golf ball has a diameter of 1.68 inches. USGA regulations specify this diameter. This diameter must meet hole and club requirements. Golf balls do not need to be measured individually since manufacturers will abide by the sizing requirements.