Also keep in mind that a bigger ball needs to fit under your desk.
What size stability ball for desk.
Measure your current chair and aim to have the diameter of the ball be about 4 inches 10 2 cm higher than your current chair.
But you probably have tried this already.
Your stability ball should come with instructions on how to inflate it properly but a good rule of thumb is to base it on the diameter size a 65cm ball should be about 65cm across when fully inflated.
You should also take air pressure into consideration.
Fully inflated a 55 cm ball is 22 inches from the floor and a 65 cm ball is 26 inches from the floor.
Measure the distance between the floor and your hips and compare to ball measurements.
It could be that you need a bigger ball.
2 if you are of average weight and you are under 5 3 160 cm you should choose a 55 cm 21 7 inch diameter exercise ball.
An exercise ball when size properly makes for an active chair when sitting at a desk.
Typically the firmer the exercise ball the more challenging the exercise.
Provided that it s inflated correctly.
5 11 to 6 7 height.