Convert petagram to pound (troy or apothecary)
Please provide values below to convert petagram [Pg] to pound (troy or apothecary) [lb t], or Convert pound (troy or apothecary) to petagram.
How to Convert Petagram to Pound (Troy Or Apothecary)
1 Pg = 2679228880719 lb t
Example: convert 15 Pg to lb t:
15 Pg = 15 × 2679228880719 lb t = 40188433210785 lb t
Petagram to Pound (Troy Or Apothecary) Conversion Table
| petagram | pound (troy or apothecary) |
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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.
Pound (Troy Or Apothecary)
A pound (troy or apothecary) is a unit of weight used primarily for precious metals and gemstones, equivalent to 12 ounces or approximately 373 grams.
History/Origin
The troy pound originated in the medieval French town of Troyes, historically used in the trade of precious metals and gemstones. The apothecary pound was used in pharmacy for weighing medicines and ingredients. Both units have roots in medieval European systems of measurement.
Current Use
The troy pound is still used in the precious metals industry, especially for gold, silver, and gemstones. The apothecary pound is largely obsolete but may still be referenced in historical contexts or traditional practices.