Wyrlde’s measurements grew out of the post Bitter Road era and were “a significant mess” by the third Emperor, who declared certain standards and unified all of the chief measures through a set of fixed adamantine objects named Grains, Drams, Seeds, and Tips. They reside today in the Imperial Palace on Zefir, rumored to be stored in a sealed block of crystalline material. Copies of them are used in many places, alongside far more common tools developed from them for measuring. What follows are some of the common measurements used for four common needs: Weight, Volume, Length, and Area.

Certain measures are uncommon, and used often in special circumstances or are merely adaptations based on need. The one exception is the Coinweight, which is fixed and genuinely used everywhere. Beyond that, any measure where the lesser is not ten is a Customary use, such as Vials, Sups, Flasks, and Cups, or Feet.