Convert Stone (UK) to Pound

The stone has ancient origins, dating back to the medieval period. Historically, the weight of a stone varied depending on the commodity being measured, ranging from 5 to 30 pounds. For example, in England, the stone was used to measure wool, and different types of goods had their own stone weights. In 1300, a standardized 14-pound stone was adopted for use in the wool trade. Over time, this 14-pound definition became the standard, and the stone was widely used in the UK for measuring body weight, a tradition that continues today.

The pound has its origins in ancient Rome, where it was known as the libra, a unit of weight equivalent to around 327 grams. The term pound comes from the Latin word "libra", which was used to refer to both the Roman pound and the unit of weight for trade. Over time, the pound evolved through various forms, including the Avoirdupois pound used in medieval England, which was based on a system of 16 ounces. The Avoirdupois pound became the standard for most goods in the U.S. and Britain by the 14th century and was later standardized internationally, with its value fixed to the kilogram in the 20th century.