Babylonjs sphere Diameter to Meter

Hello
I created a sphere. I want to give the radius of this a value that corresponds to 50 meters in real life. How can I do that? Can you help me?

Create Sphere | Babylon.js Playground (babylonjs-playground.com)

Babylon size units are relative. So you can choose any scale (without too small or too big values).
Making the sphere radius = 50 will work as 50 meters if all other sizes will be also relevant.

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The only caveat is if the scene is or might be shown in XR. XR is meter based, so that if you walk / move one meter, then objects appear in your headset correspondingly correctly.

I recommend scaling everything that is practical to meters, just so no changes are required later.

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