What this converter does
This tool converts a volume measured in milliliters (mL) into US fluid ounces (fl oz). The milliliter is a metric unit of volume equal to one-thousandth of a liter, while the fluid ounce is a common US customary unit used for liquids in recipes, beverages, and nutrition labels. Because the two systems are different, a fixed conversion factor links them: one US fluid ounce equals exactly 29.5735 milliliters.
How to use it
Type the number of milliliters you want to convert into the input box and submit. The calculator divides your value by 29.5735 and displays the equivalent number of US fluid ounces, rounded for easy reading. You can enter whole numbers or decimals — for example 250, 473, or 29.57.
The formula explained
The conversion uses a single division: $$\text{fl oz} = \frac{\text{mL}}{29.5735}$$ The constant 29.5735 is the number of milliliters in one US fluid ounce. Dividing by it tells you how many fluid ounces fit inside the given volume. To go the other way, multiply fluid ounces by 29.5735 to get milliliters.
Worked example
Suppose you have a 500 mL water bottle. Divide: $$500 \div 29.5735 = 16.907 \text{ fl oz}$$ So a half-liter bottle holds about 16.91 US fluid ounces — just over a US pint (16 fl oz).
FAQ
Is this US or UK fluid ounces? This converter uses US fluid ounces (1 fl oz = 29.5735 mL). The UK (imperial) fluid ounce is slightly smaller at 28.4131 mL.
How many mL is one fluid ounce? One US fluid ounce is 29.5735 mL, which is why the formula divides by that number.
Is a milliliter the same as a cubic centimeter? Yes — 1 mL equals exactly 1 cm³, so the conversion also works for cc measurements.
