Volume converter
Milliliters to US Fluid Ounces
Milliliters and US Fluid Ounces measure the same quantity in different unit systems. The relationship is 1 mL = 0.03381402 fl oz, which gives 0.03381402 fl oz per mL. Below you can convert any value, check a worked example and read the full chart.
Formula 1 mL = 0.03381402 fl oz
Need the other direction? US Fluid Ounces to Milliliters.
How to convert Milliliters to US Fluid Ounces
The millilitre is one thousandth of a litre and is the usual unit for liquids in cooking and medicine. The US fluid ounce is about 29.57 millilitres; the imperial fluid ounce is about 28.41 millilitres.
To convert Milliliters to US Fluid Ounces, multiply the value in mL by 0.03381402. For example, 10 mL × 0.03381402 = 0.33814023 fl oz. This works because the ratio between the two units is constant for every value in volume.
Worked examples
| mL | fl oz |
|---|---|
| 1 mL | 0.03381402 fl oz |
| 2.5 mL | 0.08453506 fl oz |
| 5 mL | 0.16907011 fl oz |
| 10 mL | 0.33814023 fl oz |
| 25 mL | 0.84535057 fl oz |
| 50 mL | 1.690701 fl oz |
| 100 mL | 3.381402 fl oz |
Reverse conversion
| fl oz | mL |
|---|---|
| 1 fl oz | 29.57353 mL |
| 5 fl oz | 147.867648 mL |
| 10 fl oz | 295.735296 mL |
| 25 fl oz | 739.338239 mL |
| 50 fl oz | 1,478.68 mL |
| 100 fl oz | 2,957.35 mL |
When this conversion is useful
This is the calculation you need when you are cooking, dosing a liquid or planning a shipment and the units do not match. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 mL is 33.814023 fl oz.
Is the conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
mL to fl oz conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| Milliliters (mL) | US Fluid Ounces (fl oz) |
|---|---|
| 1 mL | 0.03381402 fl oz |
| 2 mL | 0.06762805 fl oz |
| 3 mL | 0.10144207 fl oz |
| 4 mL | 0.13525609 fl oz |
| 5 mL | 0.16907011 fl oz |
| 6 mL | 0.20288414 fl oz |
| 7 mL | 0.23669816 fl oz |
| 8 mL | 0.27051218 fl oz |
| 9 mL | 0.3043262 fl oz |
| 10 mL | 0.33814023 fl oz |
| 11 mL | 0.37195425 fl oz |
| 12 mL | 0.40576827 fl oz |
| 13 mL | 0.4395823 fl oz |
| 14 mL | 0.47339632 fl oz |
| 15 mL | 0.50721034 fl oz |
| 16 mL | 0.54102436 fl oz |
| 17 mL | 0.57483839 fl oz |
| 18 mL | 0.60865241 fl oz |
| 19 mL | 0.64246643 fl oz |
| 20 mL | 0.67628045 fl oz |
| 21 mL | 0.71009448 fl oz |
| 22 mL | 0.7439085 fl oz |
| 23 mL | 0.77772252 fl oz |
| 24 mL | 0.81153654 fl oz |
| 25 mL | 0.84535057 fl oz |
| 26 mL | 0.87916459 fl oz |
| 27 mL | 0.91297861 fl oz |
| 28 mL | 0.94679264 fl oz |
| 29 mL | 0.98060666 fl oz |
| 30 mL | 1.014421 fl oz |
| 31 mL | 1.048235 fl oz |
| 32 mL | 1.082049 fl oz |
| 33 mL | 1.115863 fl oz |
| 34 mL | 1.149677 fl oz |
| 35 mL | 1.183491 fl oz |
| 36 mL | 1.217305 fl oz |
| 37 mL | 1.251119 fl oz |
| 38 mL | 1.284933 fl oz |
| 39 mL | 1.318747 fl oz |
| 40 mL | 1.352561 fl oz |
| 41 mL | 1.386375 fl oz |
| 42 mL | 1.420189 fl oz |
| 43 mL | 1.454003 fl oz |
| 44 mL | 1.487817 fl oz |
| 45 mL | 1.521631 fl oz |
| 46 mL | 1.555445 fl oz |
| 47 mL | 1.589259 fl oz |
| 48 mL | 1.623073 fl oz |
| 49 mL | 1.656887 fl oz |
| 50 mL | 1.690701 fl oz |
| 60 mL | 2.028841 fl oz |
| 70 mL | 2.366982 fl oz |
| 80 mL | 2.705122 fl oz |
| 90 mL | 3.043262 fl oz |
| 100 mL | 3.381402 fl oz |
Frequently asked questions
How many US Fluid Ounces are in 1 Milliliters?
1 mL equals 0.03381402 fl oz.
How do I convert Milliliters to US Fluid Ounces?
Multiply the mL value by 0.03381402. Example: 25 mL = 0.84535057 fl oz.
What is 2.5 mL in fl oz?
2.5 mL = 0.08453506 fl oz.
Is the mL to fl oz conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.