Weights & Measures
Liquid Volume
The Gill, as a measure of liquid volume is used only once. But in another reference, "The leech plant can draw a considerable amount of blood in a short time". Perhaps this means a gill is a "considerable amount". In any event, no Earth comparison is stated.
A Talu is approximately two gallons (7.57 liters).
Dry Volume Measurements
A Tef is a handful with the five fingers closed, not open.
A Tefa is six such handfuls, which is a tiny basket.
A Huda is five of these tiny baskets.
Weight Measurements
The Stone is about four Earth pounds (1.81kg).
A Weight is ten stone.
Distance Measurements
The Hort is approximately an inch and a quarter in length (31.75mm).
The smallest actual measurement described is a tenth of a hort which would equal an eighth of an inch (3.175mm).
Tape measures, marked in horts, are used to measure slaves.
The Hand is used as a measure of height in several places but no actual comparison in inches is given. On Earth, horses are measured in hands. One hand equals 4 inches (101.6mm).
The Gorean Foot or Merchant Foot is ten horts or roughly twelve and a half inches (317.5mm).
Cloth is measured in the Ah-il, which is the length from the elbow to the tip of the middle finger.
The Ah-ral is ten ah-ils.
A Pace is close to the English yard (91.44cm or 0.9144m).
A Spear Length is used a few times and based on other references this would be six to seven feet (1.82 - 2.13m).
A Kaiila Length is yet another distance measurement used without any comparison in feet or yards.
A Pasang is approximately .7 of a mile (1.12km).
Compass Direction Measurements
All directions on the planet are calculated from the Sardar Mountains. The Gorean compass is divided into eight main divisions, and each of these are also subdivided. There is also a system of latitude and longitude figured on the basis of Ahn, Ehn and Ihn.
Ta-Sardar-Var ~ North ~ Appears on all Gorean maps
Ror
Rim ~ East
Tun
Vask or Verus Var ~ South
Cart
Klim ~ West
Kail