How Many Dimples Are on a Golf Ball? A Complete Guide
Any competitive advantage on a golf course is worth its weight in your golf handicap, so it’s no surprise that many of our customers ask about golf ball dimples. We regularly receive questions about why they matter and how many dimples are on golf balls.
Truth be told, there is no definite answer to the number of dimples on a golf ball, and that surprises a lot of golfers. No rule sets a required number. Most modern golf balls have between 300 and 500 dimples, and the exact count varies by brand, model, and even version, since each manufacturer treats its dimple pattern as aerodynamic engineering rather than something to be merely checked off.
Dimple Counts On Popular Golf Balls
That freedom means manufacturers land all over the map.
The Callaway Chrome Soft X uses 332 hexagonal dimples rather than round ones, while Mizuno went the opposite direction with the RB 566 and its 566 tiny micro dimples. Closer to home, the MG Senior ball flies on a 350-dimple pattern tuned to launch high for slower swings. Every one of those balls performs, which tells you the number alone isn't the secret.
What Golf Ball Dimples Actually Do
So what are the dimples doing? A ball in flight drags a pocket of slow, churning air behind it, and the size of that wake decides how quickly the ball bleeds speed. On a smooth sphere, air peels away from the surface early and the wake balloons.
Dimples trip the thin layer of air hugging the cover into turbulence, which sounds bad but is actually the trick: turbulent air clings much farther around the back of the ball, the wake shrinks, and drag falls sharply.
Dimples also team up with backspin to create lift, because air races over the top of a spinning ball faster than it slides underneath, and that pressure difference pushes the ball upward. The effect is enormous.
Golf ball aerodynamicists once explained to Scientific American that a smooth ball struck by a professional would travel only about half as far as a dimpled one, and in an experiment recalled by the Golf Heritage Society, tour professionals driving a ball stripped of its dimples managed only 120 to 150 yards.
Why Depth, Shape, And Pattern Matter More Than Count
Once the mechanism is clear, it becomes obvious why depth, shape, and arrangement matter more than the raw count. The average dimple is only about a hundredth of an inch deep, and the same research found that changing that depth by a mere thousandth of an inch can radically alter trajectory and total distance.
Depth also sets the flight window, since deeper dimples generally flatten a ball's flight while shallower ones let it ride higher. Shape is another lever, as Callaway's hexagons show, because straight edges can cover more surface with fewer gaps between dimples.
Then there is the pattern itself, which has to deliver identical flight no matter how the ball happens to sit on the tee. Count interacts with all of it. Titleist's aerodynamics team has found that raising the dimple count tends to lower a ball's optimal trajectory, while trimming the count raises it, which is exactly why the Pro V1x, the higher flier of the two, carries 40 fewer dimples than the Pro V1 rather than more.
So no, more dimples do not automatically mean more distance. Past a certain point, added dimples simply shrink, and very small dimples are weak turbulence generators. A 322-dimple TP5 and a 566-dimple Mizuno can both fly beautifully because each pattern was engineered as a complete system.
MG Senior Golf Balls
Built for golfers looking for a higher launch, hotter feel and more distance, particularly when driver distance is under 250 yards.
- Designed for extra distance
- 350-dimple, 2-piece construction
- Durable Surlyn cover
- Available in white or optic yellow
DynaGrip Elite
A lightweight premium Cabretta leather glove made for golfers who value soft feel, grip feedback and comfort.
- Soft premium Cabretta leather
- Thin construction for better feel
- Elastic knuckle hinge for comfort
- Men's, cadet and women's sizing
MG600S Laser Rangefinder
A compact 6X rangefinder with slope-adjusted yardages, pin-lock confirmation and an external LCD display.
- Measures from 6 to 600+ yards
- MG-Lock pin targeting technology
- Slope-adjusted distance mode
- 6X magnification and external LCD
What The USGA Rules Require
None of this comes from the rulebook. The USGA's equipment rules never mention dimples by number. A conforming ball must measure at least 1.680 inches in diameter, weigh no more than 1.620 ounces, stay within initial velocity and overall distance limits, and behave like a spherically symmetrical ball.
That last requirement matters more than it sounds, because symmetry is what forbids lopsided dimple layouts designed to straighten a slice on their own. It is also the line separating balls legal for tournaments from nonconforming distance balls built purely for enjoyment, a category we broke down in our comparison of MG Senior, Bandit, and Polara nonconforming balls.
Match The Whole Ball To Your Game
For everyday golfers, the practical takeaway is simple: stop counting dimples and start matching the whole ball to your game. Dimples govern what happens in the air, but the core, mantle, and cover govern what happens at impact, which is why golf ball compression numbers deserve far more of your attention than the dimple total printed on a box.
Players with slower swings in particular gain more from designs that prioritize launch and hang time, a subject we cover fully in our buying guide to golf balls for seniors and slow swing speeds.
A Short History Of Golf Ball Dimples
It took golf about half a century to figure any of this out. In the mid 1800s, players using smooth gutta-percha balls noticed that older balls covered in nicks and cuts flew farther and straighter than fresh ones, so makers began hammering patterns into new covers by hand.
Bramble covers with raised bumps ruled the late 1800s until English engineer William Taylor patented the recessed dimple design in 1905, and Spalding soon carried it to America.
For decades afterward, nearly every ball wore an identical 336-dimple layout, and golf counts only became a competitive playground once Titleist introduced its icosahedral pattern in 1973. A century of wind tunnels later, that is how we ended up with today's spread of 322s, 338s, 350s, 388s, and 566s.
How Many Holes Does A Golf Ball Have?
There are no such things; we observed that many golfers search for both holes and dimples in roughly equal numbers, and both types of inquiries refer to the same feature. According to the rules, a golf ball is a solid molded sphere with dimples, which are shallow depressions and have no openings of any sort.
The only golf balls that have true holes are hollow plastic practice balls, and these balls have the holes to reduce the distance so that you can swing safely in confined areas. The most famous hole in golf is the one cut into the green, and this cup is 4.25 inches across.
What Is The Size And Weight Of A Golf Ball?
A conforming ball must be at least 1.680 inches (42.67 mm) in diameter and can weigh no more than 1.620 ounces (45.93 grams).
There is no maximum size and no minimum weight, so nearly every manufacturer builds right to those two limits.
Do Golf Ball Dimples Wear Out?
Yes, to some extent. The cover tends to wear out long before the ball fails to hold its shape, and each scuff from a cart path, a tree, or a wedge groove dulls the sharp edges of the dimples, which are important for aerodynamics.
A ball that is badly scuffed will tend to fly a shorter distance and in a less predictable manner, so it should be retired whenever you can feel the rough patches or notice the paint being worn through.
Is There A Best Number Of Dimples On A Golf Ball?
Certainly. Excellent golf balls are available with 322, 332, 338, 350, 388, and 566 dimples.
The number of dimples is one element of a broader aerodynamic formula, with the overall pattern determining how the ball flies.
