A chain is 22 yards (66 feet). It's one of the few "decimal" units in the English system, being one-tenth of a furlong (a furlong is one-eighth of a mile) and consisting of 100 links.
A chain is 22 yards.It's an old English measurement; 10 chains make a furlong (contraction of furrow long) and eight furlongs make a mile.A piece of land that is a chain wide and a "furrow-long" is...