Milliliters to Fluid Ounces Converter
Enter the volume in milliliters below to convert it to fluid ounces.
Convert Milliliters to Fluid Ounces (US)
Enter a value in milliliters (mL) to convert to fluid ounces (us) (fl oz).
Milliliter to Fluid Ounce Conversion Table
Table showing various milliliter measurements converted to fluid ounces. Click any preset value or arrow to load it into the converter.
| Milliliters (mL) | Fluid Ounces (US) (fl oz) |
|---|---|
| 1 mL | 0.033814 fl oz |
| 2 mL | 0.067628 fl oz |
| 5 mL | 0.1690701 fl oz |
| 10 mL | 0.3381402 fl oz |
| 15 mL | 0.5072103 fl oz |
| 20 mL | 0.6762805 fl oz |
| 25 mL | 0.8453506 fl oz |
| 30 mL | 1.0144207 fl oz |
| 50 mL | 1.6907011 fl oz |
| 75 mL | 2.5360517 fl oz |
How to Convert Milliliters to Fluid Ounces
To convert milliliters to fluid ounces, multiply the volume by the following conversion ratio: 0.033814 fluid ounces/milliliter.
Since one milliliter is equal to 0.033814 fluid ounces, you can use this simple formula to convert:
The volume in fluid ounces is equal to the volume in milliliters multiplied by 0.033814.
For example, here's how to convert 500 milliliters to fluid ounces using the formula above.
How Many Fluid Ounces Are in a Milliliter?
There are 0.033814 fluid ounces in a milliliter, which is why we use this value in the formula above.
Our milliliter to fluid ounce calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Milliliters and fluid ounces are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Milliliter?
A milliliter is a unit of volume equal to 1/1,000 of a liter (0.001 L). One-thousandth of a liter, identical to 1 cubic centimeter (cc). [1]
The milliliter is classified as a metric and SI-compatible unit of volume. Milliliters can be abbreviated as mL; for example, 1 milliliter can be written as 1 mL.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliter (mL) a convenient decimal multiple of the liter (L).
In practice, milliliters (mL) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Fluid Ounce?
A fluid ounce is a unit of volume equal to 0.0295735 liters (L), the base unit for volume. 1/128 of a US gallon (29.5735 mL). [2]
The fluid ounce is classified as a US customary unit of volume. Fluid Ounces can be abbreviated as fl oz; for example, 1 fluid ounce can be written as 1 fl oz.
When working with fluid ounces (fl oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, fluid ounces (fl oz) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.
When converting volume between milliliters (mL) and fluid ounces (fl oz), keep full floating-point precision (1 mL = 0.033814 fl oz; 1 fl oz = 29.5735296 mL) during intermediate calculations and round only the final fluid ounce figure to match your instrument tolerance.
More Milliliter & Fluid Ounce Conversions
Need to calculate in the opposite direction? Use our fluid ounces (us) to milliliters converter (fl oz to mL) to switch your starting unit immediately. You can also explore related tools such as converting cups (us) to fluid ounces (us), converting gallons (us) to fluid ounces (us), or converting milliliters to cups (us).
Convert from Milliliters
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Milliliters (mL) to Fluid Ounces (US) (fl oz)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Milliliter (mL) & Fluid Ounce (US) (fl oz)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (mL to fl oz)