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Ounce (oz)
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Ounce

The ounce (oz) is a unit of mass or weight used in both the imperial system and the U.S. customary system. It is defined as 1/16 of a pound or approximately 28.3495 grams. The ounce is commonly used to measure small quantities of food, beverages, and precious metals.

Origin:

The ounce traces its origins to ancient Roman times, where it was based on the uncia, which was 1/12 of a Roman pound (libra). The term "ounce" comes from the Latin "uncia", meaning one-twelfth. In medieval Europe, the ounce evolved as a standardized unit of weight, especially in trade. By the 14th century, the Avoirdupois ounce became the standard for most goods in England, which is equivalent to about 28.35 grams. This measurement was later adopted in the United States and other countries using the imperial system.

Grain

The grain (gr) is a unit of mass used in both the imperial system and the U.S. customary system. It is defined as 1/7000 of a pound or approximately 64.79891 milligrams. The grain is one of the smallest units of mass commonly used and is primarily employed in measuring the weight of precious metals, gemstones, and ammunition (such as bullets).

Origin:

The grain traces its origins to ancient times and was originally based on the weight of a single grain of cereal, such as barley or wheat, which was used as a reference for small weight measurements. The term "grain" comes from the Latin "granum", meaning "grain" or "seed." The grain was used as a standard measure in ancient civilizations, including the Romans, and its use continued throughout medieval Europe. Over time, it was standardized in the 14th century as part of the Avoirdupois system and has remained in use for very precise measurements in modern times, especially in scientific fields, medicine, and the firearm industry.

Convert Ounce to other weight-converter units

1 Ounce = 0.0283495 Kilogram

1 Ounce = 28.3495 Gram

1 Ounce = 28349.5 Milligram

1 Ounce = 0.0000283495 Metric Ton

1 Ounce = 0.0000279018 Long Ton

1 Ounce = 0.00003125 Short Ton

1 Ounce = 0.0625 Pound

1 Ounce = 1 Ounce

1 Ounce = 141.7475 Carat

1 Ounce = 0.005 Stone (US)

1 Ounce = 0.0044642857 Stone (UK)

1 Ounce = 437.5 Grain

1 Ounce = 0.0019425594 Slug

1 Ounce = 0.0002834952 Quintal

1 Ounce = 0.0025 Quarter (US)

1 Ounce = 0.0022321429 Quarter (UK)

1 Ounce = 0.000625 Hundredweight (US)

1 Ounce = 0.0005580357 Hundredweight (UK)

1 Ounce = 0.9719835389 Ton (assay) (US)

1 Ounce = 0.8678425446 Ton (assay) (UK)

1 Ounce = 0.0000283495 Tonne

1 Ounce = 2.834952312e-8 Kiloton

1 Ounce = 1.707257509e+25 Dalton

1 Ounce = 0.0028908468 Kilogram-force square second per meter

1 Ounce = 0.0000625 Kilopound