# 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.**