The system of weights used throughout Worldstree is fairly easy. The pound is the standard unit. Pounds are divided into weights (1 wt = 1/1000 lb) and stones (1 st = 10 lbs).

Thus:
 
 

Pounds	Weights	Silver, Value in $
1/1000	1 weight	$1
1/2000	1 halfweight, 1/2 weight	$.50
1/3000	1 thirdweight, 1/3 weight	1/3$ or $.33
1/10,000	1 dimeweight	$.10
1/20,000	1 nickleweight, 1/20 weight	$.05
1/100,000	1 pennyweight, 1/100 weight	$.01
1/100	1 spot	$10
1/10	1 stone	$100
1	1 pound	$1000

The value in silver is an average, based on the coin minted in Commons. The value of various coins varies wildly from area to area. Coins may be Mithril, Gold, Adamantium, Vitredur or Magescript for a quantity of a certain item. The twelve basic gems used in Faerie Healing are also used as a means of exchange.