Volume conversion
US fluid ounces to Millilitres (fl oz to mL)
1 fl oz = 29.5735 mL — multiply the number of US fluid ounces by 29.5735.
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
1 fl oz (US) = 29.5735296 mL
Because this is a linear conversion, the ratio never changes: every US fluid ounce is always 29.5735 mL, whatever the size of the number.
Worked example: 10 fl oz × 29.5735 = 295.735 mL .
Related conversions
About US fluid ounces and millilitres
Volume conversions trip people up because US and imperial measures share names but differ in size — a US gallon is roughly 20% smaller than an imperial one.
US fluid ounce
US customaryOne 128th of a US gallon, about 29.57 mL.
Commonly used for: Drink sizes and recipes in the United States.
Millilitre
MetricOne thousandth of a litre, equal to one cubic centimetre.
Commonly used for: Medicine doses, recipes and cosmetics.
Questions
How many millilitres are in one US fluid ounce?
One US fluid ounce equals 29.5735 mL. To convert any amount, multiply the number of US fluid ounces by 29.5735.
What is 5 fl oz in mL?
5 fl oz = 147.868 mL. Type any value into the converter above to get an exact answer.
How do I convert millilitres back to US fluid ounces?
Divide by 29.5735 instead of multiplying — or use our Millilitres to US fluid ounces converter.
Is this converter accurate?
Yes. Linear conversions use the internationally agreed factors published by NIST (SP 811), and temperature conversions use the exact defining formulas. Calculations run at full double precision and are only rounded for display.
Need a different unit?
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