Look at the thread called "World Length Scale" first before reading this footnote. In that thread, I showed you 5 different lists: First Arc Worlds by Length, Second Arc Worlds by Length, Third Arc Worlds by Length, Side Worlds by Length, and All Worlds by Length. Now, I am going to show you the actual World Length Scale I have created, made as a tool to determine different categories of world length.
To make this scale, I took the longest world, Khrysalis, at 277 quests. Then, I divided 277 by an increasingly high number until the result was similar to the amount of quests Wysteria has, which is 38. The equation I settled on was 277 / 6 = 46. This puts us at 6 different categories of world length. Here is what I have come up with.
