Sports Ball Size (Diameter) Comparison

Which sport has the smallest balls? Below is a list of ball sizes (the diameter of the ball is listed) for a wide range of sports. For comparison, we have only compared the sports that use round (spherical) balls. The smallest? A squash ball is just a little smaller than the golf ball. At the other end of the scale, the largest is the basketball.

sport ball size comparison Comparison of different ball sizes

In the table below, the official ball sizes are listed where known. In the case of a range of ball sizes, either the range is listed or the average or commonly used size is listed. The ball size used for adult male competition is used if there is variation in the ball size used for different ages or classes. The standard unit of measurement is sometimes inches and other times millimeters. Whichever the case, the units are converted so that you can see the size in either unit.

See also our list of ball weights.

Sport Ball Diameter, Sorted from Smallest to largest

sport diameter (inches) diameter (mm) notes
Squash 1.56 to 1.59 39.5 to 40.5  
Table Tennis 1.6 40 the size increased from 38 mm after the 2000 Olympic Games.
Golf 1.68 42.67 These are minimum sizes. The size changed from 1.62 inches in 1990.
Jai Alai 2.2 55  
Racquetball 2.25 57  
Pool 2.25 to 2.375 57.15 to 60.33  
Carom billiards 2.42 61.5  
Lacrosse 2.5 63.5  
Tennis 2.575 to 2.700 65.41 to 68.58  
Pétanque 2 3/8" and 3 1/8" 70.5 to 80  
Cricket 2.80 to 2.86 71.3 to 72.9 8 13/16 and 9 in (224 and 229 mm) in circumference
Field Hockey 2.8 to 2.96 71.3 to 74.8 circumference 224–235 mm (8.8–9.3 in)
Baseball 2 7⁄8 to 3 73 to 76  
Pickleball 2.87 to 2.97 73 to 75.5 according to official usapa rules
Wiffle Ball 2.87 to 3.15 73 to 80 approx. size
Polo 3 to 3 1⁄2 inches 76 to 89 weighs 3 1⁄2 ounces (99 g) to 4 1⁄2 ounces (130 g).
Croquet 3 5/8 92  
Softball 3.82 97.1  
Bocce 4.2 107 the target ball size is from 40 to 60 mm
Lawn Bowls 4 5/8 to 5 1/8 117.5 to 130.2 lawn bowls are not a perfect sphere
Shot Put 4.33 to 5.12 110 to 130 men's weights
Team Handball 7.3 to 7.5 185-191 this is for the size III ball
Volleyball 8.15 to 8.39 207 to 213  
Bowling 8.500 to 8.595 215.9 to 218.3 this is the maximum size
Football (Soccer) 8.5 to 8.8 216 to 223 dimensions for a regulation size 5 ball.
Korfball 8.5 to 8.8 216.5 to 224.4 the size 5 ball for players >15 yrs. Size between 68cm and 70.5cm in circumference and weigh between 445g and 475g when fully inflated.
Water polo 8.5 to 8.9 216.5 to 226.0 size 5 (used for male adults)
Netball 8.9 226  
Basketball 9.4 238.8 dimensions for a regulation size 7 ball.

Sources

The ball size information is from a wide range of sources online. Although they are believed to be correct, you should check with official sources if it is important. If you have a correction or a sport ball size to add, please let us know below.

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