Convert ounce to pennyweight
Please provide values below to convert ounce [oz] to pennyweight [pwt], or Convert pennyweight to ounce.
How to Convert Ounce to Pennyweight
1 oz = 18.2291666666667 pwt
Example: convert 15 oz to pwt:
15 oz = 15 × 18.2291666666667 pwt = 273.4375 pwt
Ounce to Pennyweight Conversion Table
| ounce | pennyweight |
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Ounce
An ounce (oz) is a unit of weight or mass used primarily in the United States and other countries that use the imperial system. It is equal to 1/16 of a pound or approximately 28.35 grams.
History/Origin
The ounce has origins in ancient Roman and medieval systems of weight measurement. It was historically used in various forms across different cultures, with the modern avoirdupois ounce standardized in the 14th century in England to facilitate trade and commerce.
Current Use
Today, the ounce is commonly used to measure food ingredients, precious metals, and other small quantities of weight in the United States and other countries using the imperial system. It is also used in the context of jewelry, cooking, and postal services.
Pennyweight
The pennyweight (pwt) is a unit of weight traditionally used in measuring precious metals and gemstones, equivalent to 1/20 of a troy ounce or 1.555 grams.
History/Origin
Originating in the medieval period, the pennyweight was used in the troy weight system for weighing gold and silver, especially in the jewelry and precious metals industries. Its use has persisted in certain regions and industries for historical and practical reasons.
Current Use
Today, the pennyweight is primarily used in the jewelry trade and precious metals markets to specify weights of gold, silver, and gemstones, especially in the United States and in contexts where precise measurement of small quantities is required.