Search results
Results from the WOW.Com Content Network
The pound or pound-mass is a unit of mass used in both the British imperial and United States customary systems of measurement.Various definitions have been used; the most common today is the international avoirdupois pound, which is legally defined as exactly 0.453 592 37 kilograms, and which is divided into 16 avoirdupois ounces. [1]
It was historically based on a physical standardized pound or "prototype weight" that could be divided into 16 ounces. [ a ] There were a number of competing measures of mass, and the fact that the avoirdupois pound had three even numbers as divisors (half and half and half again) may have been a cause of much of its popularity, so that the ...
Because there were 12 troy ounces in the old troy pound, there would have been 240 pennyweights to the pound (mass) – just as there were 240 pennies in the original pound-sterling. However, prior to 1526, the English pound sterling was based on the tower pound, which is 15 ⁄ 16 of a troy pound.
A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl.) is a unit of volume. An imperial fluid ounce is defined in British law as exactly 28.4130625 millilitres, [15] while a US customary fluid ounce is exactly 29.5735295625 mL, [16] and a US food labelling fluid ounce is 30 mL. [17]
The original mercantile pound of 25 shillings or 15 (Tower) ounces was displaced by, variously, the pound of the Hanseatic League (16 tower ounces) and by the pound of the then-important wool trade (16 ounces of 437 grains). A new pound of 7,680 grains was inadvertently created as 16 troy ounces, referring to the new troy rather than the old ...
The basic form of the apothecaries' system is essentially a subset of the Roman weight system. An apothecaries' pound normally consisted of 12 ounces. (In France this was changed to 16 ounces, and in Spain, the customary unit was the marco, a mark of 8 ounces.) In the south of Europe and in France, the scruple was generally divided into 24 ...
The saying, "a pint's a pound the world around", refers to 16 US fluid ounces of water weighing approximately (about 4% more than) one pound avoirdupois. An imperial pint of water weighs a pound and a quarter ( 20 oz ).
Merchants/Mercantile pound 15 oz tower = 6750 gr ≈ 437.4 g London/Mercantile pound 15 oz troy = 16 oz tower = 7200 gr ≈ 466.6 g Mercantile stone 12 lb L ≈ 5.6 kg Butcher's stone 8 lb ≈ 3.63 kg Sack 26 st = 364 lb ≈ 165 kg The carat was once specified as four grains in the English-speaking world.