Convert Stone (US) to Quintal

The stone as a unit of mass has roots dating back to ancient times, where it was used in various cultures for weighing goods, with the weight of a stone varying by country and commodity. In the UK, the stone was historically used to measure items like wool, and the weight of the stone varied (ranging from 5 to 30 pounds) based on the goods being measured. The U.S. adopted a 14-pound stone in the 19th century, primarily as a way to measure body weight, though it is now largely replaced by the pound for more precise measurements. The 14-pound stone is still used informally in some areas, especially in the context of body weight.

The term quintal comes from the Latin word "centum", meaning "hundred," and historically referred to a weight of around 100 kilograms. It was used in medieval Europe for measuring bulk commodities like grain, and the weight of the quintal varied by region and commodity. Over time, the quintal became standardized to 100 kilograms in most countries that adopted the metric system in the 19th and 20th centuries. It continues to be used in international trade and agriculture, especially in countries like India, Brazil, and some European countries.