Lore:Measurements

Eorzean units and measurements are based on the USCS system of measurement, if not renamed. Length and distance are measured in ilms (inches), fulms (feet), yalms (yards) and malms (miles), whereas weight is measured in onzes (ounces), ponzes (pounds), and tonzes (Tons).

Whereas originally there existed some confusion when it came to ilms (Commonly specified as an adult Hyuran thumb), as the length of body parts would vary from person to person, Admiral Agatzahr Roehmerlsyn of Limsa Lominsa instuted a standard measure of the ilm in the year 986 of the Sixth Astral Era.

Measurement Tables

Unit of Measure	Abbreviation	Relation	Metric	Approximation
Ilm	im		2.54 cm	An adult Hyuran thumb; a ripe rolanberry
Fulm	fm	12 im	30.48 cm	An adult Hyuran foot; a grown chocobo tailfeather
Yalm	ym	3 fm	0.91 m	A bastard sword blade; an adult Lalafellin male
Malm	mm	1760 ym	1.6 km	The distance an adult Elezen can run in a tenth bell; The approximate height of O'Ghomoro

Unit of Weight	Abbreviation	Relation	Metric	Approximation
Onze	oz		28.34 g	An adult Hyuran thumb; a 100-gil coin
Ponze	pz	16 oz	0.45 kg	A merchant's scale stone; a block of kukuru butter
Tonze	tz	2000 pz	907.18 kg	A fully matured goobbue; 600 bottles of Wineport red (1 standard overseas shipment)