Idea: Lego Stud as an International Standard Measurement Unit
Because millimeters just aren’t catching on here…
Most kids who have been exposed to Lego eventually develop an innate stud length comparative measurement ability. They are a standard size already, and both Europeans and Americans of the same generation can think in Lego Stud Length without too much brain strain.
— RayfordSteele, of Halfbakery.