The imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first...

traced back to Ancient Roman units of measurement, and Carolingian and Saxon units of measure. The US Customary system of units was developed and used in...

symbol, ′, is commonly used to represent the foot. In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet. Since...

A system of units of measurement, also known as a system of units or system of measurement, is a collection of units of measurement and rules relating...

to create the imperial system (with imperial units), which was officially adopted in 1826, changing the definitions of some of its units. Consequently...

English units were the units of measurement used in England up to 1826 (when they were replaced by Imperial units), which evolved as a combination of...

all other SI units are derived from these base units.: 132  Systems of measurement in modern use include the metric system, the imperial system, and United...

with specific volume units. The units of cubic length (the cubic inch, cubic foot, cubic mile, etc.) are the same in the imperial and US customary systems...

A bushel (abbreviation: bsh. or bu.) is an imperial and US customary unit of volume based upon an earlier measure of dry capacity. The old bushel is equal...

gallon is a unit of volume in British imperial units and United States customary units. Three different versions are in current use: the imperial gallon (imp...