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Ball Size Matters

Are you in the market for an exercise ball? Or perhaps you would like to give one as a gift? In either case you want to make sure the ball is the correct size for the body using it. It is easy to do since the sizing is just based on height.


Here's the break down I use with my Pilates clients.

  • If you are less than 5’4’’ your ball should be 55 cm in diameter.
  • Say you are between 5’4” and 5’10”, then your ball should be 10cm bigger and measuring 65 cm in diameter.
  • For all of you 5’10" or taller, the ball should be 75 cm in diameter. Seems pretty simple and you have a little wiggle room with how much to inflate the ball too.

Fit's Tip: When you are sitting on the ball, your knees should be at a 90 degree angle, so your pelvis is even with your knees. This will ensure proper alignment and balance for all of the exercises you can do with the ball. And let me tell you, there’s a lot you can do with ball.

Get your appropriately sized ball here.

Around The Web
Join The Conversation
Novaraen Novaraen 8 years
I am SO getting a ball!!
alexandria1 alexandria1 10 years
those balls are great! with just 5-6 different exercises you do almost all muscles you need. i mix yoga and ball at home. perfect combination for me! you might have some good ball exercises for us, dear fit?!
DStirk DStirk 10 years
The silver ones are cool! I usually see them in blah colors like red, blue and green!
JennaV JennaV 10 years
I am just under 5'4 and I use the 55 cm ball.
katie225 katie225 10 years
i'm under 5' tall, and the smallest balls are still too big. i can't touch the ground! depression. some of the packages say if your height is 5'0-5'4, then use the 55 cm, which i think is more accurate. they should make smaller ones so that us short people and even some kids could get in on it!
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