Yeah, there is alredy a topic talking about this, but it is from 2016 and doesn't provide any solutions. So, is there any way to change measurement units in KDE?
According to this reddit post - there is still no way of doing that
I guess it is low priority for KDE Devs
there was an extra regional setting where you could specify measurement units of this type in KDE 4 but they removed it for some reason for KDE 5.
yup I stumbled upon KDE forum post from 2010 earlier