Ounces to Arrobas (Brazilian) (oz to @)

1 ounce equals 0.001889968208 arrobas (Brazilian) (rounded).

1 ounce = 0.001889968208 arrobas (Brazilian)

How to convert ounces to arrobas (Brazilian)

To convert ounces to arrobas (Brazilian), multiply the number of ounces by 0.001889968208. The factor is rounded to 10 significant digits. To go the other way, multiply arrobas (Brazilian) by 529.1094292 (rounded).

arrobas (Brazilian) = ounces × 0.001889968208

Example: 10 ounces = 0.01889968208 arrobas (Brazilian).

About these units

Ounce (oz)

US & ImperialCurrent unit

One sixteenth of a pound, exactly 28.349523125 g. Used for food, mail and consumer goods in the US and UK.

A twelfth part is what ounce originally meant. It comes from the Roman uncia, one twelfth of the Roman pound, a word that also gave English the inch. The abbreviation oz does not come from English at all but from the Italian onza or oncia. Over the centuries many regions and trades used different ounces: the English Tower ounce of 29.16 g was abolished by Henry VIII in 1527, and the Dutch ons was redefined as exactly 100 g in 1820.

The avoirdupois ounce used for everyday goods is one sixteenth of a pound, exactly 28.349523125 g or 437.5 grains, the standard in the US and under the UK imperial system. It is not the same as the troy ounce for precious metals, and neither is the fluid ounce, which measures volume. Ounces still describe portions such as steaks and burgers, and they show up in unexpected places: fabric is graded by weight per area, so a 16 oz denim is a heavy cloth, and the copper on a circuit board is specified in ounces, where 1 oz is roughly 34.7 micrometres thick.

1 ounce = 0.02834952313 kilograms (approximately).

Sources: Wikipedia: Ounce; NIST Guide to the SI, Appendix B.8 (mass conversions)

Arroba (Brazilian) (@)

Spanish & PortugueseTraditional unit (still used in some regions)

Exactly 15 kg. Used in Brazil for the weight of cattle and cotton.

Arabic ar-rubʿ, a quarter, is the root of arroba, which was a fourth of a quintal in the Iberian trade world. Portugal carried the unit to Brazil, and in Portugal the arroba was about 14.7 kilograms, while parts of Spain such as Galicia, Aragon and Andalusia used about 11.5.

Brazil's modern metric arroba is 15 kilograms, the figure used here, and the agricultural sector still relies on it, mainly for cattle and cotton. Elsewhere in Latin America the value differs: 12.5 kilograms in Colombia, Ecuador and Peru, while Bolivia's national arroba is a volume of 30.46 liters. Because the symbol @ is also the word arroba in Spanish and Portuguese, the same sign serves as the email at-sign in those languages.

1 arroba (Brazilian) = 15 kilograms (exactly).

Sources: Wikipedia: Arroba

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