What is an Avoirdupois ounce?

Answer 1

An avoirdupois ounce is a unit of weight in the avoirdupois system, equal to one sixteenth of an avoirdupois pound.

As an exact measurement, an avoirdupois ounce is defined as 28.349523125 grams. For most practical purposes, this requires rounding to just two decimal places.

Answer 2

An Avoirdupois ounce is a unit of measurement used in the US customary system and the British imperial system to measure mass. It is equal to approximately 28.35 grams and is commonly used to measure the weight of goods in everyday situations.

Answer 3

An avoirdupois ounce is 1/16 of an avoirdupois pound. Those are the ounces and pounds used in the United States. The avoirdupois pound is about 0.454 kilograms.