Convert grain to exagram
Please provide values below to convert grain [gr] to exagram [Eg], or Convert exagram to grain.
How to Convert Grain to Exagram
1 gr = 6.479891e-20 Eg
Example: convert 15 gr to Eg:
15 gr = 15 × 6.479891e-20 Eg = 9.7198365e-19 Eg
Grain to Exagram Conversion Table
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Grain
A grain is a unit of mass traditionally used to measure small quantities, primarily in the context of precious metals, pharmaceuticals, and firearms.
History/Origin
The grain dates back to ancient times and was originally based on the weight of a single seed of a cereal grain, such as barley. It has been used since the Middle Ages and was standardized in the apothecaries' system.
Current Use
Today, the grain is mainly used in the measurement of bullets, gunpowder, and precious metals, and is recognized as a unit of mass in the apothecaries' system, although it has largely been replaced by grams in most contexts.
Exagram
An exagram (Eg) is a unit of mass equal to 10^18 grams, used to measure extremely large quantities of mass.
History/Origin
The exagram is a relatively recent addition to the metric system, introduced to facilitate the measurement of very large masses in scientific and industrial contexts, aligning with the SI prefixes for large units.
Current Use
Exagrams are primarily used in scientific research, astronomy, and large-scale industrial applications to quantify massive amounts of material or celestial bodies.