Volume conversion
Millilitres to US fluid ounces (mL to fl oz)
Convert millilitres to US fluid ounces for a drink or liquid recipe. Here “oz” in the URL means fl oz by volume, not ounces on a scale.
1 mL ≈ 0.0338 fl oz — the calculator keeps the stored factor; this summary may be rounded.
A drink portion measuring 250 mL
- Starting measurement
- 250 mL
- Converted value (rounded if needed)
- 8.4535 fl oz
The volume conversion is the same for water, milk or oil. Their weights can differ, so this result should not be treated as weight ounces.
Millilitres to US fluid ounces conversion chart
| millilitres | US fluid ounces |
|---|---|
| 1 mL | 0.0338 fl oz |
| 2 mL | 0.0676 fl oz |
| 3 mL | 0.1014 fl oz |
| 4 mL | 0.1353 fl oz |
| 5 mL | 0.1691 fl oz |
| 10 mL | 0.3381 fl oz |
| 15 mL | 0.5072 fl oz |
| 20 mL | 0.6763 fl oz |
| 25 mL | 0.8454 fl oz |
| 30 mL | 1.0144 fl oz |
| 40 mL | 1.3526 fl oz |
| 50 mL | 1.6907 fl oz |
| 60 mL | 2.0288 fl oz |
| 75 mL | 2.536 fl oz |
| 100 mL | 3.3814 fl oz |
| 150 mL | 5.0721 fl oz |
| 200 mL | 6.7628 fl oz |
| 250 mL | 8.4535 fl oz |
| 500 mL | 16.907 fl oz |
| 750 mL | 25.3605 fl oz |
| 1000 mL | 33.814 fl oz |
How to convert by hand
Reference relationship (display may be rounded)
1 mL = 0.0338140227 fl oz (US)
- Multiply the amount in millilitres by the number of US fluid ounces per unit.
- Use the calculator for the stored precision; copying a short displayed factor introduces extra rounding.
- Round the result to suit your measurement, after completing the calculation.
Related conversions
About millilitres and US fluid ounces
Check the measurement system as well as the unit name. These pair pages use US liquid gallons and US fluid ounces. Choose an explicitly UK unit in the full converter for imperial measures.
Millilitre
MetricOne thousandth of a litre, equal to one cubic centimetre. This is a volume, not a weight in grams.
Commonly used for: Measuring-jug markings, drink portions and small liquid quantities.
US fluid ounce
US customaryOne 128th of a US gallon, about 29.57 mL. A UK imperial fluid ounce has a different volume.
Commonly used for: US drink labels and liquid recipe measurements marked fl oz.
Questions
Does the ingredient change a millilitre-to-fluid-ounce conversion?
No. Both units measure volume. Ingredient density matters only when you cross from volume to weight, such as millilitres to grams or weight ounces.
How do I convert US fluid ounces back to millilitres?
Enter the value in the US fluid ounces field above to work backwards, or open the US fluid ounces to Millilitres converter. This uses the stored factors rather than dividing by a rounded number copied from the chart.
Why might the chart and calculator show different decimal places?
The chart uses a compact rounded display. The editable calculator can show up to six decimal places and uses the factors or temperature formulas stored in the library. More displayed digits do not make the original measurement more precise.
Precision and source
The calculator uses stored conversion factors and temperature formulas, then rounds the result for display. A short decimal in a chart is not a claim of exactness. For a calculation with several steps, keep as much precision as the original measurement supports and round at the end.
Reference: NIST SP 811 conversion factors. Its alphabetical tables distinguish unit variants and temperature readings from intervals. Published by ToolsNow. Report a conversion problem.
Need a different unit?
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