A perch is a unit of length that was historically used in some English-speaking countries, primarily in the United Kingdom. It is equivalent to 5.5 yards or 16.5 feet (about 5.0292 meters). The term "perch" is relatively old and is not commonly used in modern measurements.
Perches were often used in land measurement, particularly in agriculture and real estate. They were also sometimes used in surveying. However, the use of the perch as a standard unit of measurement has largely been replaced by more modern and standardized systems such as the metric system or the imperial system based on feet and yards. As a result, the perch is considered an archaic or historical unit of measurement today.
A furlong is a unit of length that is used primarily in horse racing and some other sports, as well as in some older systems of measurement. In modern terms, one furlong is equal to 1/8th of a mile. This is equivalent to 660 feet or 220 yards.
The term "furlong" has historical roots and was originally used in medieval England as a way to measure distances for plowing fields. Over time, it became associated with horse racing and is still used today to describe the length of a horse racing track. In horse racing, races are often measured in furlongs, and the distance of a race may be referred to as "6 furlongs" or "10 furlongs," for example.
While the furlong is not commonly used in everyday measurements, it is still relevant in certain specialized contexts, particularly in horse racing and related sports.