Volume conversion
US fluid ounces to Millilitres (fl oz to mL)
Convert US fluid ounces on a bottle or recipe to millilitres. Check for the letters fl and the measurement system; a weight ounce or UK fluid ounce is different.
1 fl oz ≈ 29.5735 mL — the calculator keeps the stored factor; this summary may be rounded.
A serving marked 8 US fl oz
- Starting measurement
- 8 fl oz
- Converted value (rounded if needed)
- 236.588 mL
Read the millilitre result on a measuring jug. It is a volume and does not tell you how many grams of the drink or ingredient to weigh.
US fluid ounces to Millilitres conversion chart
| US fluid ounces | millilitres |
|---|---|
| 1 fl oz | 29.5735 mL |
| 2 fl oz | 59.1471 mL |
| 3 fl oz | 88.7206 mL |
| 4 fl oz | 118.294 mL |
| 5 fl oz | 147.868 mL |
| 6 fl oz | 177.441 mL |
| 7 fl oz | 207.015 mL |
| 8 fl oz | 236.588 mL |
| 9 fl oz | 266.162 mL |
| 10 fl oz | 295.735 mL |
| 12 fl oz | 354.882 mL |
| 15 fl oz | 443.603 mL |
| 18 fl oz | 532.324 mL |
| 20 fl oz | 591.471 mL |
| 25 fl oz | 739.338 mL |
| 30 fl oz | 887.206 mL |
| 40 fl oz | 1182.94 mL |
| 50 fl oz | 1478.68 mL |
| 60 fl oz | 1774.41 mL |
| 75 fl oz | 2218.01 mL |
| 100 fl oz | 2957.35 mL |
How to convert by hand
Reference relationship (display may be rounded)
1 fl oz (US) = 29.5735296 mL
- Multiply the amount in US fluid ounces by the number of millilitres 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 US fluid ounces and millilitres
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.
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.
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.
Questions
Can I use a UK fluid-ounce marking here?
No. This page uses the US fluid ounce. Choose fl oz (UK) in the full unit converter for an imperial marking; the two fluid-ounce definitions give different millilitre results.
How do I convert millilitres back to US fluid ounces?
Enter the value in the millilitres field above to work backwards, or open the Millilitres to US fluid ounces 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.
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