What is the Milliliters to Fluid Ounces Converter?
This tool converts a volume measured in milliliters (mL) into US fluid ounces (fl oz). Milliliters are the standard metric unit of volume used in most of the world, while fluid ounces are common in the United States for recipes, beverages, and packaging. One US fluid ounce equals exactly 29.5735 milliliters.
How to Use It
Enter the number of milliliters you want to convert and the calculator instantly returns the equivalent in US fluid ounces. It works for any positive value, from a small dose of medicine to a large drink container.
The Formula Explained
The conversion uses a single division:
$$\text{fl oz} = \frac{\text{mL}}{29.5735}$$
Because there are 29.5735 milliliters in one US fluid ounce, dividing the milliliter amount by this factor yields the number of fluid ounces. To go the other way, multiply fluid ounces by 29.5735.
Worked Example
Suppose you have 500 mL of liquid. Divide by the conversion factor: $$500 \div 29.5735 = 16.907 \text{ fl oz}.$$ So a typical 500 mL water bottle holds about 16.9 US fluid ounces.
FAQ
Is this US or UK fluid ounces? This converter uses US fluid ounces (29.5735 mL each). A UK/imperial fluid ounce is slightly smaller at 28.4131 mL.
How many mL are in a fluid ounce? Exactly 29.5735 mL in one US fluid ounce.
How do I convert ounces back to mL? Multiply the number of fluid ounces by 29.5735 to get milliliters.
