A pennyweight (abbreviated dwt) is a unit of mass that is equal to 24 grains, 1⁄20 of a troy ounce, 1⁄240 of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grams.
How pennyweight is used to calculate the value of gold. Pennyweight is a unit of measurement widely used in the jewelry industry. It comes by its name as it represented the weight of one British penny which contained 1/240th of a Troy pound of Sterling Silver. The weight of one British penny is equal to 1/20th of a Troy ounce. Therefore there are 20 pennyweights to one Troy ounce. GoldFellow® uses pennyweight to weigh all precious metals – gold, silver or platinum. But, grams are also used to weigh precious metals The grams shown on your scale are not the same as the grams used in gold! You are measuring on a device that uses 28 grams per ounce while gold is measured in troy ounces. There are 31.1 grams per Troy ounce. The simplest way to use your home scale is to multiply the number showing as ounces by 20. That's it. If your scale shows 3.5 oz you have approximately 70 pennyweight. 1.5oz is about 30 pennyweight and so on. A pennyweight (dwt) is a unit of mass. Jewellers use the pennyweight in their calculations for the necessary amount of precious metals in casting items using the lost-wax casting process. While dwt is the most common abbreviation for pennyweight (as d was the abbreviation for penny in the pre-decimalisation British system), some sources list pwt as an alternative. Rachelle_of_Shangri_La · 8 years ago. Best Answer: The term pennyweight refers to an actual weight of gold in an object like jewelry. There are 20 pennyweights, also referred to as DWT, in a Troy ounce. That means that a pennyweight is 1/20 Troy ounce. A 14 carat gold necklace contains (14/24)x100% gold, where 24 carat represents pure gold. RE: In talking about gold, what is the meaning of penny weight? If a gold appraisal on a gold piece of jewelry says it has 52 Penny weight of 14K gold, what does penny weight mean. Update: Well Maggie_Hu have to get another to make it best answer, but you answered a question I have been trying to answer for a long time. Can't find this anywhere Report Abuse. A pennyweight (dwt) is a unit of mass. Jewellers use the pennyweight in their calculations for the necessary amount of precious metals in casting items using the lost-wax casting process. It is the common weight used in the valuation of precious metals. While dwt is the most common abbreviation for pennyweight (as d was the abbreviation for penny in the pre-decimalisation British system), some sources list pwt as an alternative. Rachelle_of_Shangri_La · 8 years ago. In the Middle Ages, a British penny 's weight was literally, as well as monetarily, 1⁄20 of an ounce and 1⁄240 of a pound of sterling silver. At that time, the pound in use was the Tower pound (5,400 troy grains). The medieval English pennyweight was thus equal to 32 Tower grains (also known as wheat grains). When Troy weights replaced Tower weights in 1527, the Troy weights were defined in such a way that the old Tower pound came out to exactly 5400 Troy grains (also known as barleycorns), the Tower pennyweight 22 1⁄2 Troy grains (and thus approximately 1.46 grams). A pennyweight (abbreviated dwt) is a unit of mass that is equal to 24 grains, 1⁄20 of a troy ounce, 1⁄240 of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grams. When Troy weights replaced Tower weights in 1527, the Troy weights were defined in such a way that the old Tower pound came out to exactly 5400 Troy grains (also known as barleycorns), the Tower pennyweight 22 1⁄2 Troy grains (and thus approximately 1.46 grams). Pennyweight. A pennyweight is a unit of mass that is equal to 24 grains, ¹⁄20 of a troy ounce, ¹⁄240 of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grammes. In the Middle Ages, a British penny's weight was literally, as well as monetarily, ¹⁄20 of an ounce and ¹⁄240 of a pound of sterling silver Meronyms (parts of pennyweight): grain (1/60 dram; equals an avoirdupois grain or 64.799 milligrams). Holonyms (pennyweight is a part of...): apothecaries' ounce; ounce; troy ounce (a unit of apothecary weight equal to 480 grains or one twelfth of a pound). 
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what does pennyweight mean