A measure of mass in the US and Imperial measurement systems.

Abbreviation: oz

One ounce weighs about the same as a slice of bread.

It is exactly 28.349523125 grams

Not to be confused with the fluid ounce (a measure of volume)

Abbreviation: oz

One ounce weighs about the same as a slice of bread.

It is exactly 28.349523125 grams

Not to be confused with the fluid ounce (a measure of volume)

See: Fluid Ounce