Milliliters to Fluid Ounces Converter
Enter milliliters to convert to US fluid ounces, or enter fluid ounces to convert to milliliters.
Enter a value to see the conversion
How Milliliters to Fluid Ounces Conversion Works
A milliliter (mL) is a metric unit of volume equal to one thousandth of a liter, and one milliliter equals approximately 0.03381 US fluid ounces. To convert milliliters to US fluid ounces, divide by 29.5735. This conversion is essential for adapting international recipes to US measurements, understanding product sizes when traveling, and converting medication dosages.
According to the National Institute of Standards and Technology (NIST), the US gallon is defined as exactly 3,785.411784 milliliters, giving 128 fluid ounces per gallon, or 29.57353 mL per fluid ounce. The milliliter is derived from the liter, which is defined as exactly 1 cubic decimeter (1,000 cubic centimeters). This makes the milliliter identical to the cubic centimeter (cc), a term still used in medical contexts.
The milliliter is the global standard for measuring liquid volumes in cooking, medicine, chemistry, and commerce. According to the International Bureau of Weights and Measures (BIPM), the SI system (including mL) is used by over 95% of the world's population. The fluid ounce is used primarily in the United States. Our Volume Converter converts between all major volume units, while our Cooking Converter specializes in kitchen measurements.
The Milliliters to Fluid Ounces Formula
The conversion formulas are:
US Fluid Ounces = Milliliters / 29.5735
Milliliters = US Fluid Ounces x 29.5735
For UK (Imperial) fluid ounces:
UK Fluid Ounces = Milliliters / 28.4131
Worked example: A European recipe calls for 200 mL of cream. In US fluid ounces: 200 / 29.5735 = 6.76 fl oz. Since US measuring cups are marked in ounces, you would measure just under 7 fl oz (or about 6 and 3/4 fl oz). In cups: 200 / 236.59 = 0.845 cups, slightly less than 7/8 cup.
Key Terms You Should Know
- Milliliter (mL) -- A metric unit of volume equal to 1/1,000 of a liter, 1 cubic centimeter (cc), or approximately 0.034 US fluid ounces. The standard small-volume unit worldwide for cooking, medicine, and chemistry.
- US Fluid Ounce (fl oz) -- Equal to approximately 29.5735 mL or 1/128 of a US gallon. Used primarily in the United States for food, beverage, and household product volumes.
- Liter (L) -- Equal to 1,000 mL or approximately 33.81 US fluid ounces. Approximately 5% larger than a US quart (32 fl oz / 946 mL).
- Cubic Centimeter (cc or cm3) -- Exactly equal to 1 mL. The term "cc" is commonly used in medicine (syringe volumes) and automotive (engine displacement). The BIPM recommends using mL instead.
- Centiliter (cL) -- Equal to 10 mL. Commonly used in Europe for wine servings (a standard glass is 12.5 cL or 15 cL) and spirit measures. Not commonly used in the US.
Milliliters to Fluid Ounces Reference Table
Common mL-to-fl-oz conversions for everyday products and recipes, based on the NIST definition of the US fluid ounce.
| Milliliters | US Fl Oz | Common Product |
|---|---|---|
| 5 mL | 0.17 fl oz | 1 teaspoon |
| 15 mL | 0.51 fl oz | 1 tablespoon |
| 30 mL | 1.01 fl oz | Medicine dose cup |
| 50 mL | 1.69 fl oz | Mini liquor bottle |
| 100 mL | 3.38 fl oz | TSA carry-on limit |
| 200 mL | 6.76 fl oz | Small juice box |
| 250 mL | 8.45 fl oz | 1 metric cup |
| 330 mL | 11.16 fl oz | European soda can |
| 355 mL | 12.00 fl oz | US soda can |
| 500 mL | 16.91 fl oz | Standard water bottle |
| 750 mL | 25.36 fl oz | Standard wine bottle |
| 1,000 mL | 33.81 fl oz | 1 liter |
Practical Examples
Following a European recipe: A French soup recipe calls for 750 mL of stock. Converting: 750 / 29.5735 = 25.36 fl oz, which is about 3.17 US cups. Since your Pyrex measuring cup shows ounces and cups, pour to the 25 fl oz line plus a little extra, or simply measure 3 and 1/6 cups.
Comparing beverage sizes internationally: A European soda can holds 330 mL (11.16 fl oz), while a US can holds 355 mL (12 fl oz) -- the US can is about 7.6% larger. A standard European beer bottle is 330 mL or 500 mL, while US beer bottles are typically 12 fl oz (355 mL). When comparing prices per fluid ounce, the volume difference matters. Our Fluid Ounces to Milliliters Converter provides the reverse calculation.
Medication dosing: A doctor prescribes 10 mL of liquid medication twice daily. In fluid ounces: 10 / 29.5735 = 0.34 fl oz, which is approximately 2 teaspoons. However, according to the FDA, you should always use the milliliter-marked dosing device that comes with the medication rather than kitchen teaspoons, which can vary by up to 25% in volume. A daily total of 20 mL means a 200 mL bottle lasts 10 days.
Tips for Converting Milliliters to Fluid Ounces
- Divide by 30 for a quick estimate: Since 1 fl oz = 29.57 mL, dividing by 30 gives a fast approximation that is only 1.4% low. For example, 300 mL / 30 = 10 fl oz (exact: 10.14 fl oz). Good enough for most cooking situations.
- Remember key benchmarks: 250 mL = about 8.5 fl oz (one metric cup). 500 mL = about 17 fl oz (just over a US pint). 1,000 mL (1 liter) = about 34 fl oz (just over a US quart). These help with rapid mental estimation.
- Check US vs UK when the recipe source is unclear: US fl oz is 29.57 mL, UK fl oz is 28.41 mL. The 4% difference matters in baking. When unsure, check the recipe author's location or look for other clues (use of "cups" suggests US, "caster sugar" suggests UK).
- For skincare and cosmetics, the label often shows both: Most international beauty products list volume in both mL and fl oz on the packaging. A "1.7 fl oz" face cream is 50 mL. A "3.4 fl oz" perfume is 100 mL.
- Use our Volume Converter for comprehensive conversions: When you need mL, fl oz, cups, pints, liters, and gallons all at once, the full volume converter handles everything in one step.
Common Product Sizes: mL vs Fluid Ounces
Consumer products are labeled differently depending on the market. US products typically show fl oz first with mL in parentheses, while international products show mL first. Understanding both helps when shopping internationally or comparing products online.
| Product Category | Common US Size | Common Metric Size |
|---|---|---|
| Bottled Water | 16.9 fl oz (500 mL) | 500 mL / 1 L / 1.5 L |
| Soda Can | 12 fl oz (355 mL) | 330 mL |
| Wine Bottle | 25.4 fl oz (750 mL) | 750 mL |
| Shampoo | 12-16 fl oz (355-473 mL) | 250-500 mL |
| Perfume | 1-3.4 fl oz (30-100 mL) | 30-100 mL |
| Cough Syrup | 4-8 fl oz (118-237 mL) | 100-200 mL |
Frequently Asked Questions
How many fluid ounces are in a milliliter?
One milliliter equals approximately 0.03381 US fluid ounces. To put it another way, it takes about 29.57 milliliters to make 1 US fluid ounce. This conversion factor is derived from the NIST definition: 1 US gallon = 3,785.411784 mL, divided by 128 fl oz per gallon. For UK Imperial fluid ounces, 1 mL = 0.03520 fl oz (since 1 UK fl oz = 28.4131 mL).
How do I convert milliliters to fluid ounces?
Divide the milliliter value by 29.5735 to get US fluid ounces. For example, 500 mL / 29.5735 = 16.91 fl oz. For a quick estimate, divide mL by 30 for an approximate fl oz value (this is about 1.4% low but acceptable for most cooking purposes). To convert to UK fluid ounces instead, divide by 28.4131. The difference between US and UK fluid ounces is about 4.1%.
How many fluid ounces are in 750 mL?
750 milliliters equals approximately 25.36 US fluid ounces. This is the standard wine bottle size worldwide. A 750 mL bottle also equals about 3.17 US cups or 0.79 US quarts. In UK measurements, 750 mL equals approximately 26.40 Imperial fluid ounces. The 750 mL standard was adopted internationally in the 1970s as part of the metrication of the wine industry.
How many fluid ounces are in a 500 mL bottle?
500 milliliters equals approximately 16.91 US fluid ounces. This is the standard size for bottled water worldwide and is very close to 1 US pint (16 fl oz / 473 mL). In practical terms, a 500 mL bottle holds about 2.11 US cups of liquid. This size is also common for shampoo bottles, sports drinks, and many household liquid products.
What is the difference between mL and cc?
Milliliters (mL) and cubic centimeters (cc) are exactly the same volume. 1 mL = 1 cc = 1 cm3. The term "cc" is commonly used in medical contexts (e.g., injecting 5 cc of medication) while "mL" is used in cooking, chemistry, and everyday measurement. The BIPM and most modern medical organizations recommend using mL instead of cc to avoid confusion with other abbreviations. Both equal approximately 0.034 US fluid ounces.
How do I know if a recipe uses US or UK fluid ounces?
Check the origin of the recipe. US recipes use US fluid ounces (29.57 mL each), while British and some Commonwealth recipes use Imperial fluid ounces (28.41 mL each). If a recipe is in a US cookbook or website, assume US fl oz. If from a UK source, assume Imperial. The difference is about 4.1%, which can matter for precise baking. A British recipe calling for 10 fl oz of milk means 284 mL, while a US recipe means 296 mL.