Fluid Ounces to ML Converter
Convert US fluid ounces to milliliters and back instantly
| Amount | Milliliter |
|---|---|
| 1 fl oz | 29.57353 mL |
| 2 fl oz | 59.147059 mL |
| 5 fl oz | 147.86765 mL |
| 10 fl oz | 295.7353 mL |
| 25 fl oz | 739.33824 mL |
| 50 fl oz | 1,478.6765 mL |
| 100 fl oz | 2,957.353 mL |
| 500 fl oz | 14,786.765 mL |
| 1,000 fl oz | 29,573.53 mL |
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Fluid Ounces to ML Converter: Convert fl oz to mL Instantly
This free fluid ounces to ML converter turns US fluid ounces into milliliters the moment you type. Enter a value or move the slider, and the result appears at once, along with the formula, a quick conversion table and the same amount in liters and cups. Use the ML to Fluid Ounces tab or the swap button to convert the other way, or pick any other volume unit from the list.
Quick answer: 1 US fluid ounce is 29.5735 mL, so 8 fl oz is 236.588 mL and 16 fl oz is 473.176 mL. For quick math, many people round an ounce to 30 mL.
Fluid Ounces to ML Formula
A US fluid ounce is defined as one 128th of a US gallon, which is exactly 29.57353 milliliters. Multiply the fluid ounces by 29.57353 to get milliliters. The converter uses this exact value, so there is no rounding until the last digit.
| US fluid ounces | Milliliters | Cups |
|---|---|---|
| 0.5 | 14.78676 | 0.0625 |
| 1 | 29.57353 | 0.125 |
| 2 | 59.14706 | 0.25 |
| 4 | 118.2941 | 0.5 |
| 6 | 177.4412 | 0.75 |
| 8 | 236.5882 | 1 |
| 10 | 295.7353 | 1.25 |
| 12 | 354.8824 | 1.5 |
| 16 | 473.1765 | 2 |
| 20 | 591.4706 | 2.5 |
| 24 | 709.7647 | 3 |
| 32 | 946.3529 | 4 |
| 64 | 1,892.706 | 8 |
| 128 | 3,785.412 | 16 |
US vs Imperial Fluid Ounces
The US and UK fluid ounces are close but not identical. A US fluid ounce is 29.5735 mL, an imperial one is 28.4131 mL, and US labels round to 30 mL. If a label or recipe comes from the US, use the US value, and for older British sources use the imperial one.
| Fluid ounce | Milliliters | Where it is used |
|---|---|---|
| US fluid ounce | 29.5735 | US recipes, drinks and bottles |
| US label ounce | 30 | US nutrition labels |
| Imperial fluid ounce | 28.4131 | UK and older British recipes |
Common Drink Sizes
Cans, bottles and cups are labeled in fluid ounces in the US and in milliliters almost everywhere else. These everyday sizes show how the two line up:
| Everyday drink | Fluid ounces | Milliliters |
|---|---|---|
| Shot glass | 1.5 | 44.36 |
| Small coffee | 8 | 236.59 |
| Soda can | 12 | 354.88 |
| Water bottle | 16.9 | 499.79 |
| Pint glass | 16 | 473.18 |
| Large coffee | 20 | 591.47 |
| Wine bottle | 25.36 | 749.98 |
| Liter bottle | 33.814 | 1,000 |
ML to Fluid Ounces
To go back, divide milliliters by 29.57353. For example, 500 mL is 16.907 US fluid ounces and 1,000 mL is 33.814. The ML to Fluid Ounces tab does this for you.
Related Volume Conversions
For cups, pints, quarts and gallons, use the full volume converter, and the cups to ML converter turns recipe cups into milliliters. For liters and other metric volumes, the ML to liters converter and the main unit converter help too.
Who Uses a Fluid Ounces to ML Converter?
Travelers use it to check carry-on liquid limits, and cooks and bartenders use it for recipes and drinks. Parents use it for baby bottles and doses, and shoppers use it to compare drink and product sizes across brands.
How to Use This Fluid Ounces to ML Converter
Enter the fluid ounces
Type a number, move the slider, or tap a quick amount like a cup, a pint or a quart.
Choose your units
The converter opens on fluid ounces to milliliters. Use the other tab, the swap button or the lists for other volume units.
Read the result
The answer appears instantly, along with the volume in fluid ounces, milliliters, liters and cups.
Explore the extras
Open Difference, Formula, Reference or Comparison to see the factor, common drink sizes or the gap between two volumes.