What size stability/exercise ball?

[Meganator]

I was thinking of getting a stability ball, but I can't find any information that tells me what size I should get (55/65/75 cm). My guess is that I want to be able to sit on it and have my thighs parallel to the floor. But it will squish down some when I sit on it. But how much it squishes also depends on how much air is in it.

Roughly measured, when I am sitting on a chair, it is 48 cm (19-ish inches) to the floor. So I'm thinking the 55 cm (21.65 in) would be too small, and the 65 cm (25.59 in) would be the best size for me. Any guidance on this?

Thanks,
Megan

[HealthyinMN]

Here is a general guideline


Under 5' 45 cm ball

5' to 5'7" 55 cm ball

5'8" to 6'2" 65 cm ball

Over 6'2" 75 cm ball


You want your knees and hips to be at about a 90 degree angle

[Meganator]

Here is a general guideline


Under 5' 45 cm ball

5' to 5'7" 55 cm ball

5'8" to 6'2" 65 cm ball

Over 6'2" 75 cm ball




Thanks - that's exactly the type of guideline I was looking for, but I couldn't find it anywhere.