What is two fluid ounces?
A dry ounce is a measure of weight.
A fluid ounce is a measure of volume.
A dry ounce is often just called "an ounce," an is abbreviated "oz." A fluid ounce is usually explicitly called "a fluid ounce" and is abbreviated "fl. oz."
The only way to convert from weight to volume is to know the density of the material in question. For example, A fluid ounce of lead will weigh many more dry ounces and than a fluid ounce of feathers! But a dry ounce of lead weighs exactly as much as a dry ounce of feathers, but the feathers will take up a lot more space.
A dry ounce is equal to 28.3495231 grams
A fluid ounce is equal to 29.5735297 milliliters
Other Useful conversions:
16 dry ounces = 1 pound
35.2739619 dry ounces = 1 kilogram
1 fluid ounce = 2 US tablespoons
8 fluid ounces = 1 US cup
16 fluid ounces = 1 US pint
32 fluid ounces = 1 US quart
128 fluid ounces = 1 US gallon
33.8140226 US fluid ounces = 1 liter
See the Related Questions nearby for more information.