Convert carat to petagram
Please provide values below to convert carat [car, ct] to petagram [Pg], or Convert petagram to carat.
How to Convert Carat to Petagram
1 car, ct = 2e-16 Pg
Example: convert 15 car, ct to Pg:
15 car, ct = 15 × 2e-16 Pg = 3e-15 Pg
Carat to Petagram Conversion Table
| carat | petagram |
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Carat
A carat is a unit of mass used to measure gemstones and pearls, equal to 200 milligrams.
History/Origin
The carat originated from the carob seed, which was historically used as a counterweight in balance scales due to its uniform weight. The term has been used since the 16th century to measure precious stones.
Current Use
Today, the carat is primarily used in the jewelry industry to specify the weight of diamonds and other gemstones, with 1 carat equaling 0.2 grams.
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.