Convert Grain (gr) to Tetradrachma (Biblical Greek) (tetradrachma) instantly.
About these units
Grain (gr)
The grain, defined as exactly 64.79891 milligrams, is one of the oldest units of mass still in limited use today. Derived from the weight of average cereal grains such as barley or wheat, it became a universal tiny unit used across Europe for coins, medicine, and gunpowder. The grain persists in firearms and ammunition manufacturing because bullet weights are still listed in grains (e.g., a "150-grain bullet"). Reloaders and ballistic engineers rely on the grain as a fine unit suitable for measuring powder charges and projectile masses. It is also used in traditional gold and silver transactions, linking it to the troy system. The grain's longevity highlights how ancient agrarian measures can remain embedded in modern technological practices.
Tetradrachma (Biblical Greek) (tetradrachma)
A tetradrachma weighed about 17 grams, equivalent to four drachmas. It became one of the most widely circulated silver coins in the ancient world, especially under the Athenian empire. Athenian tetradrachms, often stamped with the iconic owl design, were standardized, highly trusted, and circulated across the Mediterranean as an international currency. Although now primarily of numismatic interest, tetradrachms are key archaeological artifacts, illuminating trade networks, political authority, and artistic expression.