skip to main content

Water Polo Ball Size Guide

In water polo, there are various sizes of water polo balls. Each size is assigned to a specific level, or levels. This guide will explain the different sizes of water polo balls and the different levels that each is used for.


Size 1: Splashball

  • Most commonly used in introductory water polo camps where boys and girls aged 8 & under try out water polo for the first time.
  • The small size of this ball makes it easier for the young, beginning players to handle the ball.


Size 2: Junior

  • Used by 12 & under girls and 10 & under co-ed.
  • The smaller size of this ball is most appropriate for this age range as young players learn basic water polo skills.


Size 3: Intermediate

  • Used by 14 & under girls and 12 & under boys.
  • This transitional sized ball is designed and volumetrically engineered to provide a smooth transition to the Size 4 ball, to improve skill development, and to increase quality of play.


Size 4: Compact (previously called Women's)

  • Used by 14 & under boys; 16 & under girls club, 18 & under girls club, and all high school girls; NCAA women; and International women.
  • Regulated Circumference: Between 0.65 and 0.67 meters.


Size 5: Men's

  • Used by 16 & under boys club, 18 & under boys club, and all high school boys; NCAA men; and International men.
  • Regulated Circumference: Between 0.68 and 0.71 meters.

Shop all Water Polo Balls

Email Address Invalid. Please enter an email address in the format: xx@yy.zz
1 year ago.
My eleven-year-old son is new to water polo. He would like a weighted ball to practice in the backyard. What size(and weight) of weighted ball do I buy?
1 year ago.
Hi Laura!

We recommend the Mikasa Intermediate Size 3 Water Polo Ball which designed for 14 & under girls and 12 & under boys.
1 year ago.
What’s 9 plus 10
1 year ago.
Hi Lannan!

That should be a junior size.
2 years ago.
I need two water polo ball - one for age 8 one for age 10

Help with the sizing?

2 years ago.
You'll need junior for both.
Add a Comment
Name * Your Email (will not be displayed) *
To prevent automated bots from spamming, please enter the text you see in the image below: