3 1/2 cups Powdered sugar directly from the box or plastic bag weighs 4 1/2 ounces per cup; therefore, a 1-pound box (or 16 ounces) provides approximately 3 1/2 cups of powdered sugar.
How are pounds measured?
The Imperial system utilized in England and Wales consisted of three distinct types of weight measurements: Avoirdupois mass Troy pound Apothecaries’ mass The pound was the usual unit of weight in each case (lb). The abbreviation ‘lb’ is derived from the Latin word for pound, ‘libra,’ which was also used to refer to the pound sterling (£).
The division of pounds into ounces (oz). However, the majority of goods were sold based on their volume or capacity rather than their weight. Specialist terminology used to describe produce amounts sometimes refer to the containers in which they are typically sold, rather than their weight. For instance, a caddy is a container for tea.
This included one and a third pounds of tea. Additionally, vocabulary changed throughout parts of the British Isles. Researchers need to examine dictionaries and specialized works on archaic weights and measures to determine what weight was intended by these values.