Kilt length

[MacMillan of Rathdown]

Thanks, so far, for all the great information concerning kilt length. I realize that everyone has their own personal preference but, in reality, who sets the standard?

Military regulations set the standard. The kilt is, ultimately, an item of military apparel that has been adopted as the national attire of Scotland. That being the case the correct length of the kilt, for soldiers and civilians alike, is to the top of the knee.

Is this carved in stone?

No, something even more permanent: Queen's Regulations.