The ounce (/ ˈaʊns /) is any of several different units of mass, weight, or volume and is derived almost unchanged from the uncia, an Ancient Roman unit of measurement. The avoirdupois ounce (exactly 28.349 523 125 g) is 1⁄16 avoirdupois pound; this is the United States customary and British imperial ounce.

An ounce is a unit of weight in the imperial system and the US customary system, with one ounce equal to approximately 28.35 grams. Ounces are often used to measure smaller quantities of …

A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl., old forms ℥, fl ℥, f℥, ƒ ℥) is a unit of volume (also called capacity) typically used for measuring liquids.

The meaning of OUNCE is a unit of weight equal to 1/12 troy pound. How to use ounce in a sentence.

In the metric system, an ounce is equivalent to 28.35 grams. However, the ounce is also used in the customary system of measurement, particularly in the United States, where it is defined as …

Ounce (abbreviation: oz) is a unit of weight in the US customary system and imperial system of measurement that equals one-sixteenth of a pound. In simple words, there are 16 ounces in …

OUNCE definition: 1. a unit of weight equal to approximately 28 grams: 2. a very small amount: 3. a unit of weight…. Learn more.

Mar 3, 2025 · ounce, unit of weight in the avoirdupois system, equal to 1/16 pound (437 1/2 grains), and in the troy and apothecaries’ systems, equal to 480 grains, or 1/12 pound. The avoirdupois ounce is equal to 28.35 grams and the troy and apothecaries’ ounce to 31.103 grams.

An ounce is a unit of weight. There are sixteen ounces in a pound and one ounce is equal to 28.35 grams.

a unit of weight equal to one twelfth of a Troy or Apothecaries' pound; 1 ounce is equal to 480 grains or 31.103 grams