Avoirdupois system: traditional system of weight measurement Avoirdupois system Avoirdupois is a system of weight based on a 16-ounce pound (7,000 grains, 453.59237 g). Widely used in the United States and still in use for everyday weights in several English-s…
United States customary units Overview of the U.S. customary system: its principal length, area, volume, mass and temperature units, history of use and metrication, practical applications, and key differences f…
