Circumference Of A Tennis Ball

How big is the tennis ball? 3

As a State Certified Tennis Instructor and Mechanical Engineer, I am qualified to answer your questions.

According to international tennis rules, tennis balls must be between 2 1/2 inches and 2 5/8 inches in diameter.

Since the mathematical formula for the frame is 3.14 (pi) times the diameter, the frame of a tennis ball should be between 7.85 inches and 8.25 inches.

The size of a tennis ball

The size of a tennis ball

There are some exceptions. The smallest values ​​allowed are 7 3/8 inches and the largest is 8 1/4 inches

Circumference Of A Tennis Ball