Ounces to kilograms conversion (oz to kg)

Ounce

Symbol

The symbol for ounce is "oz."

Description

An ounce is a smaller unit of mass compared to a pound. It is defined as one-sixteenth of a pound. So, to convert oz to lb (pounds), you just need to divide the number of ounces by 16.

One ounce equals to about 28 grams, 28.349523125 grams to be exact. To convert ounce to gram, multiply the ounce value by this number.

For oz to kg conversion, multiply the ounces value by 0.0283495231 and you will get the equivalent mass in kg.

History

The history of the ounce traces back to ancient Rome, where it was originally based on the weight of one Roman ounce of gold or silver. It was derived from the word "uncia" which means "twelfth part". A standard copper bar was used to define foot and pound in the Roman era. This bar was subdivided into twelve equal parts or unciae. Eventually these uncia became the standard for defining the common ounce.

Over time, different regions developed their own versions of the ounce, leading to variations in size.

Today, the most common types of ounces are the avoirdupois ounce (used in the United States and other countries) and the troy ounce (used for precious metals like gold and silver).

Use

Ounce is not as widely used as it was before. It is still used in many parts of the world mostly for measuring food items or postal packages.

Kilogram

Symbol

"kg" is the shorthand for kilogram.

Description

A kilogram, a unit of mass, is the base in the metric system. One kilogram is equal to 1000 grams. 

When we need to convert kilograms to grams (kg to gm), we do it by simply multiplying the number of kilograms by 1000.

For kg to milligram conversion, multiply kilogram by 1,000,000! You can also convert kg to lb. For that, multiply kg amount by 2.2046. Since 1 kilogram (kg) is equal to 2.20462262185 pounds (lbs).

1 kg is equal to 35.27396195 ounces (oz). So for by multiplying kg by 35.274 you will get equivalent approx ounces amount. In reverese, 1 ounce means about 0.0283495 kg.

History

The history of the kilogram dates back to the late 18th century during the French Revolution when the metric system was established. Initially, a kilogram was defined as the mass of one liter of water.

Later, it was refined into a physical object known as IPK (International Prototype of the Kilogram), a platinum-iridium alloy cylinder kept at the BIPM in France.

However, relying on a physical prototype posed challenges due to its susceptibility to change over time. To address this, in 2019, the kilogram underwent a significant redefinition based on a fundamental constant of nature known as the Planck constant.

Use

Kilogram is used on food packaging, gym equipment, a weight converter, and many other items where weight is indicated.