ah-il : a unit of measure, the distance from the elbow to the tip of the middle finger, c. 18";

ah-ral : a unit of measure equaling 10 ah-il, or approx. 180" 

foot, Gorean : slightly longer than the Earth foot based on supposition that each of its 10 horts is roughly 1 1/4 inches long (12 1/2 inches Earth measure); it's standard is a metal rod kept at the Sardar. Also called the Merchant's Foot. 

hort : a measure of distance equal to 1- 1/4 inches

huda : a unit of measure equaling 5 tefa; a tefa equals six tef and a tef equals a handful with five fingers closed. 

pasang : measure of distance equaling .7 miles

 

 pasang stone : a stone set up along roads to mark distance to and from certain destinations. 

Stone : a unit of measurement equal to four earth pounds. There is an official stone, a solid metal cylinder which is kept near the Sardar. During fairs, cities, on a given day can test their stone against the 'standard' stone 

talu : a unit a measure equaling 2 gallons 

tef : a measurement of five handfuls with fingers closed. 

tefa : a measurement consisting of six tef, which constitutes a tiny basket. 

Weight : a unit of measurement equal to 10 Stone, or 40 Earth pounds 

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A Pace:  close to the English yard.

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Spear Length:  is used a few times and based on other references this would be six to seven feet.

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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