Oz to ML Converter
Convert oz to ml instantly with our free fluid ounces to milliliters converter. Includes 16 oz, 32 oz, 40 oz, 1000 ml to oz, charts and more.
Converting oz to ml is a common task in cooking, bartending, medicine, and everyday liquid measurement. Need to convert fluid ounces to milliliters for a recipe or product label? This oz to ml converter gives you instant, accurate results. One US fluid ounce equals 29.5735 milliliters, as defined by the National Institute of Standards and Technology (NIST). So how many ml in an ounce? Exactly 29.5735 ml for a US fluid ounce.
How to Convert Oz to ML
To convert ounces to milliliters, multiply the number of fluid ounces by 29.5735. This is the standard conversion factor for US customary fluid ounces.
Formula: ml = oz x 29.5735
To convert ml to oz, divide by 29.5735.
Example: To convert 5 oz to ml: 5 x 29.5735 = 147.87 ml.
Reverse example: How many oz is 500 ml? 500 / 29.5735 = 16.91 oz.
How many ml is 1 fl oz? One US fluid ounce equals 29.5735 ml. This is the standard under the metric system adoption in the US customary measurement framework.
16 Oz to ML
16 oz to ml is one of the most searched conversions because 16 fluid ounces equals one US pint. A standard bottled water in the US holds 16.9 fl oz (500 ml), close to this amount.
Calculation: 16 x 29.5735 = 473.18 ml
This is equivalent to just under half a liter. What is 16 oz in ml? It is 473.18 ml, enough for a full drip coffee or large cold brew serving.
32 Oz to ML
32 oz to ml equals one US quart. This conversion applies to large beverage containers, water jugs, and sports bottles.
Calculation: 32 x 29.5735 = 946.35 ml
Just under one liter (1,000 ml). A 32 oz Nalgene or Hydro Flask holds approximately 946 ml. This is a popular hydration target for half-day outdoor activities.
40 Oz to ML
40 oz to ml is commonly searched for large sports bottles and tumbler-style containers.
Calculation: 40 x 29.5735 = 1,182.94 ml
That is approximately 1.18 liters. A 40 oz Stanley tumbler holds just over 1.18 liters. This size is popular for all-day hydration at the office or gym.
1000 ML to Oz
Converting 1000 ml to oz (one liter to fluid ounces) is useful when working with metric product labels or international recipes.
Calculation: 1000 / 29.5735 = 33.81 oz
One liter equals approximately 33.81 US fluid ounces. A standard 1-liter water bottle holds about 33.8 oz. This is a key reference for cooking with European recipes that list volumes in liters.
22 Oz to ML
22 oz to ml is a common size for travel mugs and pour-over coffee carafes.
Calculation: 22 x 29.5735 = 650.62 ml
A 22 oz travel mug holds 650 ml, enough for a large coffee with room for milk or creamer.
Small Decimal Oz Conversions
Small decimal fluid ounce values appear in perfume bottles, medicine droppers, and cocktail dashes. Here are the most common ones:
- 0.5 oz to ml: 0.5 x 29.5735 = 14.79 ml. Also expressed as 0.5 fl oz to ml, this is approximately one tablespoon and a standard measure for cocktail bitters and vanilla extract.
- 0.33 oz to ml: 0.33 x 29.5735 = 9.76 ml. Common for small perfume spray bottles and single-serve product samples.
- 0.34 oz to ml: 0.34 x 29.5735 = 10.06 ml. Very close to 0.33 oz, this appears on some European product labels converted to US measure.
- 0.25 oz to ml: 0.25 x 29.5735 = 7.39 ml. A quarter ounce, used for cocktail dashes and small medicine doses.
- 0.17 oz to ml: 0.17 x 29.5735 = 5.03 ml. Approximately one teaspoon. Common for eye drop vials and sample sachets.
- 1.5 oz to ml: 1.5 x 29.5735 = 44.36 ml. The standard jigger size used in bartending worldwide.
Oz to ML Chart
Use this oz to ml chart for quick reference without calculating each time:
| Fluid Ounces (oz) | Milliliters (ml) |
|---|---|
| 0.17 oz | 5.03 ml |
| 0.25 oz | 7.39 ml |
| 0.33 oz | 9.76 ml |
| 0.34 oz | 10.06 ml |
| 0.5 oz | 14.79 ml |
| 1 oz | 29.57 ml |
| 1.5 oz | 44.36 ml |
| 2 oz | 59.15 ml |
| 4 oz | 118.29 ml |
| 6 oz | 177.44 ml |
| 8 oz | 236.59 ml |
| 10 oz | 295.74 ml |
| 12 oz | 354.88 ml |
| 16 oz | 473.18 ml |
| 20 oz | 591.47 ml |
| 22 oz | 650.62 ml |
| 24 oz | 709.76 ml |
| 32 oz | 946.35 ml |
| 40 oz | 1,182.94 ml |
| 64 oz | 1,892.71 ml |
ML to Oz Conversion Chart
This ml to oz chart (also called the ml to oz conversion chart) helps you convert metric volumes to fluid ounces at a glance:
| Milliliters (ml) | Fluid Ounces (oz) |
|---|---|
| 10 ml | 0.34 oz |
| 30 ml | 1.01 oz |
| 50 ml | 1.69 oz |
| 100 ml | 3.38 oz |
| 150 ml | 5.07 oz |
| 200 ml | 6.76 oz |
| 250 ml | 8.45 oz |
| 355 ml | 12.00 oz |
| 500 ml | 16.91 oz |
| 750 ml | 25.36 oz |
| 1000 ml | 33.81 oz |
What Is a Fluid Ounce?
A fluid ounce is a unit of volume in the US customary and Imperial measurement systems. It measures liquid volume for beverages, cooking ingredients, medicine, and cosmetics.
There are two types of fluid ounce in common use:
- US fluid ounce: 29.5735 ml (used in the United States and most of the world for product labeling)
- Imperial fluid ounce: 28.4131 ml (used in the UK and Commonwealth countries)
Most product labels outside the UK use the US definition. If you follow a UK recipe, check whether the measurement uses Imperial fluid ounces.
What Is a Milliliter?
A milliliter (ml) is a metric unit of volume equal to one-thousandth of a liter. It is part of the International System of Units (SI) and is used globally for measuring liquid measurement in medicine, science, cooking, and industry.
Common milliliter references to help you visualize the unit:
- A standard teaspoon holds approximately 5 ml
- A tablespoon holds approximately 15 ml
- Is 30 ml equal to 1 oz? Not exactly. 30 ml equals 1.014 oz, so it is close but not a precise equivalent.
- A regular soda can contains 355 ml (12 oz)
- A standard wine pour is 150 ml (5 oz)
US vs Imperial Fluid Ounce
The difference between US and Imperial fluid ounces affects your conversion result by about 4%. This matters when using UK cookbooks or purchasing products labeled in Imperial units.
| System | 1 fl oz in ml | 16 fl oz in ml | 32 fl oz in ml |
|---|---|---|---|
| US Customary Units | 29.5735 ml | 473.18 ml | 946.35 ml |
| UK Imperial | 28.4131 ml | 454.61 ml | 909.22 ml |
This converter uses the US customary units fluid ounce by default. For Imperial conversions, multiply your oz value by 28.4131 instead.
Real-World Examples
Here are practical fluid ounces to ml conversions you will encounter in daily life:
- Cooking: A recipe calls for 4 oz of heavy cream. That is 118.29 ml, just under half a cup.
- Beverages: A 12 oz soda can contains 354.88 ml. A 20 oz sports drink holds 591.47 ml.
- Medicine: An 8 oz bottle of cough syrup contains 236.59 ml. How many ml is 8 oz? It is 236.59 ml, which helps calculate accurate medicine doses.
- Cocktails: A jigger holds 1.5 oz (44.36 ml) of spirits. A double shot is 3 oz (88.72 ml).
- Skincare: A 1 oz serum bottle contains 29.57 ml. A 3.4 oz travel product holds 100.55 ml, within TSA carry-on limits.
For more kitchen conversions, see DigiCalc's cups to ml converter and teaspoon to ml converter.
Limitations of the Oz to ML Converter
- US vs Imperial: This tool uses US fluid ounces. UK Imperial ounces differ by about 4%, so UK measurements entered directly will produce a slightly different result.
- Dry ounces vs fluid ounces: This converter handles liquid volume only. Dry ounces measure weight, not volume, and cannot be converted to ml without knowing the density of the substance.
- Rounding: Results are rounded to two decimal places. For pharmaceutical or laboratory measurements, use calibrated instruments.
- Temperature effects: Liquid density and therefore volume can vary with temperature. These conversions assume standard room temperature conditions.
For a complete set of volume conversion tools, use DigiCalc's volume converter. You can also convert directly from milliliters to fluid ounces using our dedicated ml to oz converter.