Milliliters to Ounces Converter
Convert milliliters to fluid ounces instantly. 1 mL = 0.033814 fl oz. Formula, table and the exact airport liquid limit.
Written by Rahman · Last reviewed
Quick answer
One milliliter equals 0.033814 US fluid ounces. Divide millilitres by 29.5735 to get fluid ounces, so the 100 mL airport security liquid limit is about 3.38 fl oz, which is why containers are commonly sold at "3.4 oz" to clear it.
| Cubic metre (m³) | 0.000001 |
| Litre (L) | 0.001 |
| Millilitre (mL) | 1 |
| Cubic centimetre (cm³) | 1 |
| Cubic inch (in³) | 0.06102374409 |
| Cubic foot (ft³) | 0.00003531466672 |
| Cubic yard (yd³) | 0.000001307950619 |
| US gallon (gal) | 0.0002641720524 |
| US quart (qt) | 0.001056688209 |
| US pint (pt) | 0.002113376419 |
| US cup (cup) | 0.004226752838 |
| US fluid ounce (fl oz) | 0.03381402256 |
| US tablespoon (tbsp) | 0.06762804512 |
| US teaspoon (tsp) | 0.2028841362 |
| Imperial gallon (gal (UK)) | 0.0002199692483 |
| Imperial pint (pt (UK)) | 0.001759753986 |
| Oil barrel (bbl) | 0.00000628981077 |
| Board foot (lumber) (FBM) | 0.0004237760035 |
| Thousand board feet (MBF) | 4.237760e-7 |
| Cord (firewood) (cord) | 2.758958e-7 |
mL to fl oz conversion table
| mL | fl oz |
|---|---|
| 1 mL | 0.03381402256 fl oz |
| 2 mL | 0.06762804512 fl oz |
| 3 mL | 0.1014420677 fl oz |
| 4 mL | 0.1352560902 fl oz |
| 5 mL | 0.1690701128 fl oz |
| 6 mL | 0.2028841354 fl oz |
| 7 mL | 0.2366981579 fl oz |
| 8 mL | 0.2705121805 fl oz |
| 9 mL | 0.304326203 fl oz |
| 10 mL | 0.3381402256 fl oz |
| 20 mL | 0.6762804512 fl oz |
| 30 mL | 1.014420677 fl oz |
| 40 mL | 1.352560902 fl oz |
| 50 mL | 1.690701128 fl oz |
| 60 mL | 2.028841354 fl oz |
| 70 mL | 2.366981579 fl oz |
| 80 mL | 2.705121805 fl oz |
| 90 mL | 3.04326203 fl oz |
| 100 mL | 3.381402256 fl oz |
| 250 mL | 8.45350564 fl oz |
| 500 mL | 16.90701128 fl oz |
| 1000 mL | 33.81402256 fl oz |
How to convert mL to fl oz
Airport security's liquids rule (in the US, the "3-1-1" policy; broadly similar limits apply internationally) caps individual containers at 100 mL, which converts to 3.38 fl oz. Travel-size toiletries are almost always labelled 3.4 oz rather than 3.38, a small intentional rounding up that keeps the stated size safely under the metric limit regulators actually enforce.
This is the US fluid ounce (29.5735 mL); the UK/imperial fluid ounce is slightly different, at 28.4131 mL, about 4% smaller. A recipe or drink specification that just says "oz" without naming a country can be ambiguous by a meaningful amount once liquid volumes are involved. Wine bottles are a fixed 750 mL worldwide by international convention (about 25.4 fl oz), a case where the metric figure is the actual legal standard and the ounce figure is only ever a converted approximation.