Convert Hundredweight (US) (cwt (US)) to Grain (gr) instantly.
About these units
Hundredweight (US) (cwt (US))
The US hundredweight equals 100 pounds (45.359237 kg) and is used in agriculture, livestock markets, and commodity trading. Farmers often price hay, grain, and cattle by the hundredweight. The oil and chemical industries also use it for bulk goods. Its relation to the ton (20 cwt = 1 US ton) integrates it smoothly into the US customary system. Although it complicates international trade due to conflicting definitions with the UK version, the US hundredweight remains essential in domestic commerce.
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.