Convert scruple (apothecary) to petagram
Please provide values below to convert scruple (apothecary) [s.ap] to petagram [Pg], or Convert petagram to scruple (apothecary).
How to Convert Scruple (Apothecary) to Petagram
1 s.ap = 1.2959782e-15 Pg
Example: convert 15 s.ap to Pg:
15 s.ap = 15 × 1.2959782e-15 Pg = 1.9439673e-14 Pg
Scruple (Apothecary) to Petagram Conversion Table
| scruple (apothecary) | petagram |
|---|
Scruple (Apothecary)
A scruple (s.ap) is an old unit of weight used in apothecary measurements, equivalent to 1.3 grains or approximately 1.3 grams.
History/Origin
The scruple originated in ancient Greece and was adopted into Roman and medieval European apothecary systems. It was historically used for measuring small quantities of medicinal substances and drugs.
Current Use
Today, the scruple is largely obsolete and replaced by metric units, but it is still referenced in historical contexts and traditional apothecary practices.
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.