How big is a golf ball

Golf is a popular sport played worldwide, and understanding its equipment is crucial for both beginners and enthusiasts. One fundamental component of golf is the golf ball. In this article, we will delve into the size of a golf ball, exploring its dimensions and the regulations governing it.

Size of a Golf Ball

The size of a golf ball is standardized to ensure fairness and consistency in the game. According to the rules of golf established by the United States Golf Association (USGA) and the Royal and Ancient Golf Club of St. Andrews (R&A), a golf ball must conform to specific size criteria:

  1. Diameter: The standard diameter of a golf ball is 1.68 inches (42.67 millimeters). This measurement ensures that all golf balls used in official play have a consistent size.
  2. Weight: While the rules do not dictate a specific weight, the average weight of a golf ball is approximately 1.62 ounces (45.93 grams). This weight range allows manufacturers some flexibility in producing golf balls while maintaining fairness.
  3. Spherical Shape: Golf balls must be spherical in shape. This rule ensures that the ball’s flight and roll characteristics are predictable and consistent.

Why is Size Important?

The size of a golf ball is essential for several reasons:

  1. Consistency: A uniform size ensures that all players use the same equipment, promoting a level playing field and fair competition.
  2. Aerodynamics: The size of a golf ball impacts its aerodynamics. The standard size helps regulate the ball’s flight characteristics, including distance, trajectory, and spin.
  3. Ease of Play: Golfers rely on a consistent ball size for precision and control when hitting shots. Knowing the ball’s size allows golfers to position it correctly on the tee and align putts accurately.

Variations in Golf Ball Size

While the standard size is 1.68 inches in diameter, there are some variations worth noting:

  1. Junior Golf Balls: Golf balls designed for junior players may have a slightly smaller diameter to accommodate younger golfers with smaller hands and swings. These junior balls typically have a diameter of around 1.62 inches (41.15 millimeters).
  2. Colored Golf Balls: Some golf balls come in various colors, but their size remains within the standard 1.68-inch diameter. These colored balls offer personalization and visibility benefits.

Regulatory Bodies

Golf ball size regulations are overseen by two major governing bodies:

  1. United States Golf Association (USGA): The USGA sets the rules and standards for golf in the United States. They have specific guidelines for golf ball size, weight, and other equipment-related aspects. Golf balls that conform to USGA standards are generally accepted for use in tournaments and competitions in the United States.
  2. Royal and Ancient Golf Club of St. Andrews (R&A): The R&A is the governing body for golf in most parts of the world outside the United States. They work in conjunction with the USGA to establish and maintain the rules of golf, including those related to golf ball size and other equipment specifications.

Manufacturing Tolerances

Manufacturers of golf balls adhere to strict quality control measures to ensure that their products meet the size and weight standards set by the USGA and R&A. However, there is a small manufacturing tolerance allowed to account for minor variations. This tolerance is typically within a few thousandths of an inch, which ensures that golf balls produced within these tolerances are still acceptable for tournament play.

Testing for Compliance

Golf balls undergo testing to ensure compliance with size and weight regulations. Manufacturers and golf organizations use specialized equipment to measure these critical dimensions accurately. Balls that do not meet the specified size or weight criteria are not approved for official play.

Evolution of Golf Ball Size

Historically, golf balls have not always been standardized in size. Early golf balls were often handmade and came in various sizes, materials, and shapes. It wasn’t until the late 19th century that standardization efforts began, leading to the adoption of the 1.68-inch diameter size, which remains the standard today.

Over the years, advancements in golf ball design and materials have influenced their size, weight, and performance characteristics. However, the governing bodies have consistently maintained the 1.68-inch diameter requirement to preserve the integrity and fairness of the game.

Golf Ball Dimensions

Diameter (inches)Diameter (mm)Circumference (inches)Circumference (mm)Weight (grams)

Golf Ball Size Comparison

BrandModelDiameter (inches)Diameter (mm)Weight (grams)
TitleistPro V11.6842.6745.93
CallawayChrome Soft1.6842.6745.93
BridgestoneTour B XS1.6842.6745.93
MizunoRB Tour1.6842.6745.93
Wilson StaffDuo Soft+1.6842.6745.93
Vice GolfPro Soft1.6842.6745.93
Snell GolfMTB-X1.6842.6745.93

Golf Ball Circumference and Material

BrandModelCircumference (inches)MaterialLayers
TitleistPro V15.28Urethane3
CallawayChrome Soft5.28Urethane4
BridgestoneTour B XS5.28Urethane3
MizunoRB Tour5.28Urethane4
Wilson StaffDuo Soft+5.28Ionomer2
Vice GolfPro Soft5.28Urethane3
Snell GolfMTB-X5.28Urethane3

Golf Ball Regulations

Governing BodyMaximum Diameter (inches)Maximum Weight (grams)Maximum Symmetry (Weight Distribution)
PGA of America1.6845.93Yes
European Tour1.6845.93Yes
PGA Tour1.6845.93Yes
US Open1.6845.93Yes
The Open1.6845.93Yes

Evolution of Golf Ball Size

YearDiameter (inches)
Future(Expected) 1.68
Future(Expected) 1.68


The size of a golf ball, standardized at 1.68 inches in diameter, plays a crucial role in maintaining fairness and consistency in the game of golf. Understanding the size of a golf ball is essential for golfers of all skill levels, as it directly affects the performance and accuracy of shots. Whether you’re a beginner or a seasoned golfer, knowing the regulations regarding golf ball size will help you make informed choices when selecting equipment for your game.

How big is a golf ball


  • Grace Kaufman

    Grace Kaufman, our Creative Director and a Golf Course Design Specialist, brings a touch of creativity and visual flair to The Golf Mine. With a keen eye for design and a deep understanding of course layout, she ensures that our content not only informs but also engages and inspires. Grace's innovative approach, combined with her specialization in golf course design, enhances the overall experience for our readers, making our blog more than just words on a screen.

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