Convert pennyweight to petagram
Please provide values below to convert pennyweight [pwt] to petagram [Pg], or Convert petagram to pennyweight.
How to Convert Pennyweight to Petagram
1 pwt = 1.55517384e-15 Pg
Example: convert 15 pwt to Pg:
15 pwt = 15 × 1.55517384e-15 Pg = 2.33276076e-14 Pg
Pennyweight to Petagram Conversion Table
| pennyweight | petagram |
|---|
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.
Petagram
A petagram (Pg) is a unit of mass equal to 10^15 grams or one quadrillion grams.
History/Origin
The petagram was introduced as part of the metric system's prefixes to represent extremely large masses, following the adoption of the International System of Units (SI). It is derived from the prefix 'peta-' which denotes 10^15.
Current Use
The petagram is primarily used in scientific contexts to quantify very large masses, such as in astronomy and geology, but is rarely used in everyday measurements.