How many fluid ounces are in an ounce?

Answer 1

Fluid ounces are a measure of volume, whereas an ounce (avoirdupois) is a measure of weight.

The weight in ounces (16 to a pound) of a fluid ounce (16 to a pint) will depend on the density of the liquid. However, 1 fluid ounce of water is very close to 1 ounce in weight.

Answer 2

A US fluid ounce is 1.1 ml larger than a standard ounce. ( 29.573 ml )

Answer 3

There are 0.125 fluid ounces in an ounce.